Still bigger news is that the planet — named Proxima b – is strikingly similar to Earth: Its mass is estimated to be comparable to Earth’s — only about 30 percent higher — and it appears ...
An curved arrow pointing right. Exoplanet Proxima b, the closest one to Earth, may be home to a 124-mile deep ocean and marine life. Follow BI Video: On Twitter More from Science Exoplanet Proxima ...
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