Ep. 75: Stellar Populations
After the big bang, all we had was hydrogen, a little bit of helium, and a few other trace elements. Today, we’ve a whole periodic table of elements to enjoy, from oxygen we breathe to the aluminium...
View ArticleEp. 111: Nebulae
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....
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Ep. 497: Update on Globular Clusters
Is it globular clusters or is it globeular clusters? It doesn’t matter, they’re awesome and we’re here to update you on them. Astronomy Cast will be celebrating their 500th episode the weekend of Sept...
View ArticleEp. 519: Transients: What They Are and Why They Matter
Astronomers have found that sometimes the Universe changes. Things move, things explode, things get brighter or dimmer. In fact, knowing this has helped astronomers discover some very important...
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