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Big, Really Big

Big, Really Big

Big Picture Science

April 18, 201153m 9s

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Show Notes

The universe is big – really big.* Galaxies, for instance, are often large enough to hold a trillion stars. But how did these heavenly heavyweights come to be? Hear how still-mysterious dark matter is implicated in the birth of galaxies.

Also, gamma ray bursts - explosions more energetic than anything since the Big Bang - take place somewhere in the visible universe every day. What are they, and could they obliterate life on Earth?

And, the biggest cosmic mystery de jour: dark energy. Why new, super-size telescopes may finally reveal just what it is.

We’re living large on “Big, Really Big.”

*appreciative nod to Douglas Adams

Guests:

Descripción en español

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