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on Oct 21, 2008 in Nebulae
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When you think about the best pictures in astronomy, almost every one is a nebula; the pillars of creation in the Eagle Nebula, or the complex Helix Nebula – or my personal favorite, the Ring Nebula. They’re beautiful, wispy clouds of gas and...
After the big bang, all we had was hydrogen, a little bit of helium, and a few other trace elements. Today, weâ€™ve a whole periodic table of elements to enjoy, from oxygen we breathe to the aluminium cans we drink from to the uranium that powers some peopleâ€™s homes. How did we get from plain old hydrogen to our current diversity? It came from stars, in fact successive generations of stars.
Episode 75: Stellar Populations (14.4MB)