Smallest rocky exoplanets: NASA spots Earth-like planets circling Barnard's Star, but there's a catch
The quartet of planets — named b, c, d and e — are some of the smallest rocky worlds ever detected. NASA says each has a mass ...
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What's the difference between a young exoplanet and an old one?
Understanding exoplanet evolution could help solve the mystery of the 'hot Neptune desert.' As astronomers delve deeper into ...