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Your atoms, and the atoms inside the family dog or the tree growing outside, came from the stars. This is old news to scientists, but it’s also somewhat hazy: when exactly those...
Have you ever noticed that almost every barn you have ever seen is red? There’s a reason for that, and it has to do with the chemistry of dying stars. Seriously.Yonatan Zunger is a...
Sediment in a deep-sea core may hold radioactive iron spewed by a distant supernova 2.2 million years ago and preserved in the fossilized remains of iron-loving bacteria. If confirmed, the...