The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.
Bode’s Big Night. On December 31, 1774, Johann E. Bode discovered both M81 and M82. In 1779, Pierre Mechain independently ...
Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...
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