Ep. 683: Cosmic Dawn
Astronomy Cast
00:00
The Big Bang and the New Baby Galaxies
Hubble would need gravitational lensing to see quasars that are less than a billion years old in most cases. And so even a ludicrously bright star is not bright considering the distances involved. We could just barely find quasars at 12 billion light years travel time. Which is a couple of billion years after the Big Bang. But what we're looking for is these new baby galaxies that have clusters of star formation, quasars like to form in groups and they also have active black holes in their center. So we're still working to piece together.
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