Webb uses space-bending gravity trick to discover distant stars
Astronomer David Lagattuta on how the Webb Telescope used a technique predicted by Einstein to find stars in the cosmic noon.
Star Diary · BBC Sky at Night Magazine
February 14, 202528m 1s
Show Notes
Massive objects in space warp spacetime to the extent that they can act like cosmic magnifying glasses, allowing astronomers to get a better view of the deep cosmos. This technique, known as gravitational lensing, has been used by the James Webb Space Telescope to discover a group of stars that existed at a key stage in the evolution of the Universe.
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