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NASA’s Astronomy Picture of the Day

NASA’s Astronomy Picture of the Day

1,086 episodes — Page 16 of 22

2024 June 08 - Pandora's Cluster of Galaxies

In today's image, we see a cluster of galaxies. Nearly every object in this image is a distant galaxy. When we measure the mass of galaxy cluster like this one, we find that there is a large amount of dark matter needed to explain the motions of the galaxies and the gravitational lensing caused by the cluster. Dark matter makes up the vast majority of the matter in the universe.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 8, 2024

2024 June 07 - SH2-308: The Dolphin Head Nebula

In today's image, we see the Dolphin Head Nebula which is the nebula around a young Wolf-Rayet star. These are some of the most massive stars and the type that are expected to become a supernova at the end of their lives. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 7, 2024

2024 June 06 - NGC 4565: Galaxy on Edge

In today's image, we see an image of NGC 4565 which is a spiral galaxy like our own Milky Way. This galaxy is seen in an edge-on orientation giving it a very narrow appearance which is why its common name is the Needle Galaxy.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 6, 2024

2024 June 05 - Shadow of a Martian Robot

In today's image, we see an image of the surface of Mars taken by the Perseverance Rover which has been exploring Mars since 2021. We can note the similarities to many desert areas on Earth with the exception that there is no sign of life.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 5, 2024

2024 June 04 - Comet Pons-Brooks Develops Opposing Tails

In today's image, we see an image of comet Pons-Brooks which made its closest approach to Earth a couple of days ago and is heading back into the outer solar system We can see the two distinct tails - the ion tail pointing downward to the left and the dust tail toward the upper left, less distinct and more spread out. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 4, 2024

2024 June 03 - NGC 2403 in Camelopardalis

In today's image, we see the spiral galaxy known as NGC 2403. This is a galaxy much like our own Milky Way in many ways and shows the distinct blue in the spiral arms from bright stars that have recently formed. We also see the pink color if ionized hydrogen (H II) regions. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 3, 2024

2024 June 02 - Rotating Moon from LRO

In today's image, we see the Moon in a short video put together from images taken by the Lunar Reconnaissance Orbiter (LRO). This shows the near side of the Moon which always faces Earth, but also the far side which cannot be seen from the surface of Earth and has only been studied since the late 1950s.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 2, 20244 min

2024 June 01 - Stereo Helene

In today's image, we see one of the moons of Saturn, Helene in a 3D image which can be viewed with the red-blue 3D glasses. This moon orbits in a Lagrange point formed by the gravitation of Saturn and one of the other moons, Dione. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Jun 1, 2024

2024 May 31 - The Nebulous Realm of WR 134

In today's image, we see the region around the Wolf-Rayet star, WR 134. A Wolf-Rayet star is the type of star that is expected to become a supernova at the end of its short life. At that point, it will explode, sending heavier elements out into the universe to enrich the material from which future stars will form.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 31, 20244 min

2024 May 30 - A Lunar Corona over Paris

In today's image, we see the Eiffel Tower in the foreground and the Moon above in the sky. Around the Moon, we see a lunar corona - this is a quantum mechanical effect caused by many rain drops which all have a similar size and each color of light by a different amount. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 30, 2024

2024 May 29 - Stairway to the Milky Way

In today's image, we see a stairway leading up a mountain and apparently to the Milky Way in the sky! Of course, the Milky Way is far beyond anything here on Earth, but this does give us a striking view. In the sky, we see the stars Vega and Altair as well as the airglow near the horizon. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 29, 2024

2024 May 28 - Solar X Flare as Famous Active Region Returns

In today's image, we see an image from the Solar Dynamics Observatory showing the rotation of our Sun over the course of a day. Here were see the active region, AS 3446 as it returns around the limb of the Sun and gives off a powerful X-class flare. Over the coming days, it will move into better view and further eruptions will have the possibility of impacting Earth causing communication disruptions and more strong aurorae.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 28, 20244 min

2024 May 27 - Chameleon I Molecular Cloud

In today's image, we see the Chameleon I Molecular Cloud which is a region of star formation visible in the southern sky. Here we see a number of dark nebulae as well as a couple of reflection nebulae which are both associated with regions of newly forming stars.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 27, 20243 min

2024 May 26 - A Solar Filament Erupts

In today's image, we see a solar filament which erupted into a coronal mass ejection on the Sun back in 2012. The Sun has a cycle of activity that lasts about 11 years and is near the peak of that activity cycle again right now. So, we are seeing more events like this which cause aurora here on Earth like those we saw a couple of weeks ago. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 26, 2024

2024 May 25 - Manicouagan Impact Crater from Space

In today's image, we see the Manicouagan impact crater as seen from the International Space Station. The crater, about 100km across has worn down over the past 200 million years so that we just see the remnants of the crater in the form of a circular lake. Because of weathering and erosion, craters last a much shorter time on Earth than on our Moon. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 25, 2024

2024 May 24 - M78 from the Euclid Space Telescope

In today's image, we see the star forming region known as M78 as imaged in visible and infrared light from the Euclid Space Telescope. This telescope was launched last year and will be used to study the effects of dark matter and dark energy on our universe. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 24, 2024

2024 May 23 - Unraveling NGC 3169

In today's image, we see two galaxies in the process of colliding together. When galaxies collide, their gravitational fields interact so that material is pulled out in streams as we see around the galaxy on the left. The process also takes a very long time - hundred of millions of years - so we only see a single snapshot of the collision.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 23, 20243 min

2024 May 22 - Green Aurora over Sweden

In today's image, we see an aurora from 2016 as seen over Sweden. The green color of the aurora is caused when charged particles from the Sun strike Earth's magnetic field and are funneled to the atmosphere near the north and south magnetic poles. They then excite oxygen atoms in Earth's upper atmosphere, causing the green glow.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 22, 2024

2024 May 21 - CG4: The Globule and the Galaxy

In today's image, we see what is known as a cemetery globule in the foreground. This is a region of star formation which is unrelated to comets in out solar system except for the rough appearance. We also see a distant galaxy, well beyond the globule in space, but by a chance superposition, close to it in the sky. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 21, 2024

2024 May 20 - Aurora Dome Sky

In today's image, we see an image of the aurora taken back on May 10 after the emission of a coronal mass ejection from the Sun by a large sunspot group crossing its face. That sunspot group has now moved around to the back side of the Sun as seen from Earth, but may last long enough to still be visible as the Sun continues to rotate. The sunspot would be back on our side of the Sun in another week or so. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 20, 20243 min

2024 May 19 - Jupiter Diving

In today's image, we see an animation created using data collected from the Juno spacecraft to simulate what it would be like to plunge into the upper atmosphere of Jupiter in the area around the Great Red Spot. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 19, 2024

2024 May 18 - North Celestial Aurora

In today's image, we see an image of the sky looking toward the North. We see how the stars make circular paths around the North Celestial Pole which is very close to the start Polaris in the sky. We also see an aurora caused by the increased solar activity for the past week or so. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 18, 2024

2024 May 17 - Aurora Banks Peninsula

In today's image, we see the Aurora Australis which is the aurora when seen in the southern hemisphere. That cause is exactly the same as the aurora seen in the Northern Hemisphere. The aurora have been prominent this past week because of the large sunspot group AR 3664 which has recently moved around the limb of the Sun due to the Sun's rotation. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 17, 20243 min

2024 May 16 - Aurora Georgia

In today's image, we see some of the auroral displays as seen over Georgia in the United States just about a week ago. The strong auroral displays were caused by the large sunspot group on the Sun which had emitted large numbers of charged particles which excite oxygen atoms in Earth's atmosphere, causing them to glow. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 16, 20244 min

2024 May 15 - AR 3664 at the Sun's Edge

In today's image, we see the large sunspot region known as AR 3664 as it moves around the limb of the Sun. The large prominence is larger than Earth and is now easily visible when seen against the darkness of space. One of the largest solar flares was also recently explode by this sunspot group although this is not seen in the image. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 15, 2024

2024 May 14 - The 37 Cluster

In today's image, we see a small open cluster of stars. Some of the brighter stars seem to form the number 37 in the sky. While 42 may have been more appropriate for this who have read The Hitchhiker's Guide to the Galaxy, it is still an interesting pattern of stars in our sky. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 14, 2024

2024 May 13 - AR 3664 on a Setting Sun

In today's image, we see the large sunspot group known as AR 3664 which has been very active recently, sending solar flares and coronal mass ejection in the direction of Earth and giving up so beautiful auroral displays. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 13, 2024

2024 May 12 - Red Aurora over Poland

In today's image, we see the red aurora as observed over Poland. The aurora have been especially strong the past couple of days because of the numerous coronal mass ejections from the large sunspot group currently moving across the face of the Sun.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 12, 20243 min

2024 May 11 - AR 3664: Giant Sunspot Group

In today's image, we see the giant sunspot group AR 3664 which is currently crossing the face of the Sun. Sunspots are active regions on the Sun, slightly cooler than the surrounding surface. They are also associated with solar flares and coronal mass ejections when can affect us here on Earth and also contribute to auroral activity. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 11, 2024

2024 May 10 - Simulation: Two Black Holes Merge

In today's image, we see a simulation showing the merger of two black holes. This simulation depicts what would have been happening during the first detection of gravitational waves in 2015. As the black holes spiral together, their rapid motion releases gravitation waves that we were able to detect at a distance of 1.3 billion light years.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 10, 2024

2024 May 09 - The Galaxy, the Jet, and a Famous Black Hole

In today's image, we see the giant elliptical galaxy, M87. In addition, we see images of the central jets and the famous image from 2017 by the Event Horizon Telescope of the supermassive black hole at the center of the galaxy.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 9, 2024

2024 May 08 - Visualization: A Black Hole Accretion Disk

In today's image, we see an animation which shows the central regions around a black hole including the accretion disk. The 15-second video allows us to look at this from different orientations to see the differences that are visible.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 8, 2024

2024 May 07 - Black Hole Accreting with Jet

In today's image, we see an artist's conception of an event observed in 2014. A massive explosion was observed which has since been modeled as a star being ripped apart by a supermassive black hole. Here we see that as the material from the star is added to an accretion disk around the black hole. We also see jets of material expelled perpendicular to the accretion disk.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 7, 2024

2024 May 06 - A Total Solar Eclipse from Sliver to Ring

In today's image, we see time-lapse of the total solar eclipse of April 8 of this year. We will see the Moon appear in the lower right and move to full cover the Sun, allowing us to see the solar corona. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 6, 20243 min

2024 May 05 - A Black Hole Disrupts a Passing Star

In today's image, we see an artist's conception of what would happen as a black hole tears apart a passing star. Once the material crosses the event horizon, nothing can be known about it. However, material will often swirl in an accretion disk as it enters the black hole, giving off energy and allowing us to detect the black hole's presence. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 5, 2024

2024 May 04 - 3 ATs

In today's image, we see three Auxiliary Telescopes which are used with the VLT telescopes to simulate larger mirrors using interferometry. This allows observations from different telescope to be combined together to simulate the resolution of a much larger telescope. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 4, 2024

2024 May 03 - Temperatures on WASP-43b

In today's image, we see an illustration of the orbit of the exoplanet WASP-43b. This is a nearby planet, less than 300 light years from Earth. It is an example of a "Hot Jupiter" - a large planet which orbits very close to its star. Measurement from the James Webb Space Telescope are helping us to learn more about the temperatures in the atmosphere of this planet. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 3, 2024

2024 May 02 - M100: A Grand Design Spiral Galaxy

In today's image, we see the spiral galaxy known as M100 - this is an example of what is called a grand design spiral galaxy for its majestic spiral arms. We not the blue and pink color of the spiral arms. The blue is the light of many massive, hot blue stars that have formed within the spiral arms. The pick is the glow of hydrogen gas that is energized by the ultraviolet light from these stars. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 2, 20244 min

2024 May 01 - IC 1795: The Fishhead Nebula

In today's image, we see the star forming region known as the Fishhead Nebula and also by its catalog designation of IC 1795. This region has been images using the Hubble Palette of colors which looks at the emission of three elements - oxygen, hydrogen, and sulfur and maps them to the colors blue, green, and red respectively. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

May 1, 2024

2024 April 30 - GK Per: Nova and Planetary Nebula

In today's image, we see GK Per which was seen to explode as a nova back in 1901. A nova occurs when material builds up on the surface of a white dwarf star and becomes sufficient for thermonuclear reactions to ignite on the surface, temporarily brightening the star. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 30, 2024

2024 April 29 - Comet, Planet, Moon

In today's image, we see the comet known as Pons-Brooks which has no rounded the Sun and is beginning its journey back to the outer solar system. In addition, we see a thin crescent moon and the two planets - Jupiter and Uranus.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 29, 2024

2024 April 28 - Rings Around the Ring Nebula

In today's image, we see a very deep image of the Ring Nebula as observed by multiple large telescopes. This allows for the imaging of fainter rings around the traditional Ring Nebula we normally observe. Learning more about this type of nebula will help us to better understand the final fate of stars like our own Sun.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 28, 20243 min

2024 April 27 - All Sky Moon Shadow

In today's image, we see an all sky image of the eclipse of April 8. The outer portion shows the horizon while the central circular region shows the entire sky visible from this location. In the sky, we can see the fully eclipsed Sun as well as two planets - Venus and Jupiter with one visible on either side of our Sun.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 27, 2024

2024 April 26 - Regulus and the Dwarf Galaxy

In today's image, we see the bright star Regulus which is the brightest star in the constellation of Leo. We see almost all stars as points of light because of their relatively small sizes compared to their great distances from us. We also see the Leo I dwarf spheroidal galaxy below Regulus. This is a galaxy in our own Local Group of galaxies.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 26, 2024

2024 April 25 - NGC 604: Giant Stellar Nursery

In today's image, we see a large star forming region in the galaxy M33: The Triangulum Galaxy. This is one of the spiral galaxies in our own Local Group of galaxies. The star forming region is one of the larger known in the Local Group, the largest being he Tarantula Nebula within the Large Magellanic Cloud.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 25, 2024

2024 April 24 - Dragon's Egg Bipolar Emission Nebula

In today's image, we see an example of an emission nebula around a hot massive star. The ultraviolet light from the star excites the gases around it and causes them to glow. Patterns in the gas can be caused by motions of the star itself which has a stellar companion as well as effects from he magnetic field of the star itself.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 24, 2024

2024 April 23 - Contrail Shadow X

In today's image, we see two contrails from airplanes that cross in the sky. Because of the positioning of the Sun and upper clouds, we also see the shadows cast by these contrails which form an X on the clouds above. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 23, 2024

2024 April 22 - Moon and Smoke Rings over Mt. Etna

In today's image, we see a thin waning crescent moon in the sky over Mt. Etna. We also see smoke rings from the volcano - this is a rare effect that occurs only when conditions in both the volcano and the atmosphere are just right.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 22, 2024

2024 April 21 - Perijove 16: Passing Jupiter

In today's image, we see a time-lapse video clip from the Juno spacecraft as it made its 16 close approach to the planet Jupiter. Juno has a highly elliptical orbit which allows it to come in briefly to study the planet's cloud structures, but spend most of its time well away from the intense radiation near the planet.My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 21, 2024

2024 April 20 - Diamonds in the Sky

In today's image, we see several images of the total solar eclipse which occurred on April 8. The central page showing details of the solar corona only visible during an eclipse. The other two images show what is known as the diamond ring effect which occurs just before and after a total eclipse when only a tiny portion of the Sun is visible. My podcasts are available in video form through this YouTube Channel.This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.I welcome comments and suggestions about these podcasts. I can be reached here: [email protected] work is licensed under a Creative Commons Attribution 4.0 International License.

Apr 20, 20243 min