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 ...
SETI Institute5d
Exploring HD 20794 d: A Super-Earth Laboratory for Habitability
The confirmed discovery of exoplanets revolutionized our understanding of the universe. Among the thousands of confirmed ...