This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Nearly 70 years ago, astronomer Paul Merrill was ...
When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Light from three ancient stars at the edge of the Milky Way indicates that the stars contain ...
Nearly 13.7 billion years ago, the universe was made of only hydrogen, helium and traces of lithium — byproducts of the Big Bang. Some 300 million years later, the very first stars emerged, creating ...
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