The first stars in the universe are theorized to be made of pure helium, hydrogen, and some lithium before seeding other metals through supernova explosions. Credit: NAOJ illustration If you've ever ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 119, No. 18 (May 3, 2022), pp. 1-4 (4 pages) R. Giovanelli et al., ALFALFA discovery of the nearby gas-rich dwarf ...
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