The four exoplanets orbit Barnard’s Star so closely that their years last only a few Earth days. They are probably rocky and, ...
3 小时
ExtremeTech on MSN4 Tiny Planets Found Orbiting Earth's Closest Solitary StarIllustration of Barnard's Star as seen from the surface of one of its planets. Credit: International Gemini Observatory/NOIRLab/NSF/AURA/R. Proctor/J. Pollard Just 5.96 light-years from Earth sits ...
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ExtremeTech on MSNA Series of Cosmic Collisions Gave Saturn 128 'New' MoonsThe smashups are thought to have occurred at least 100 million years ago, but the moons they created are new to astronomers.
2 天
Space on MSNAstronomers crack the case of a mysterious deep space radio signal that repeats every 2 hoursAstronomers have traced a starnge blast of radiowaves that repeats every 2 hours back to a dead star white dwarf magnetically ...
Water was present just a couple hundred million years after the Big Bang, according to a new study, shaking up the timeline ...
10 天
ZME Science on MSNThe First Water Formed Just 200 Million Years After the Big Bang From Exploding Stars“Before the first stars exploded, there was no water in the Universe because there was no oxygen,” said Daniel Whalen, a ...
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