"Water on a planet this small is a landmark discovery. It pushes closer than ever to characterizing truly Earth-like worlds." When you purchase through links on our site, we may earn an affiliate ...

Astronomers have revealed new evidence that not just one, but four tiny planets are circling around Barnard's Star, the ...

A new paper published this month reports that the star nearest to our Sun, Proxima Centauri, is a host star to not two, but three exoplanets (meaning planets circling a star that is not our own). The ...

The elusive planet Mercury reaches its furthest point from the sun on Friday (Jan. 12), with this separation allowing skywatchers a chance to spot the tiny planet. The fact that Mercury is the closest ...

What was discovered in Flagstaff, Arizona, and killed off in Prague? If you answered "Pluto's planethood," your grasp of the astronomical is excellent. Feb. 18 marks the 95th anniversary of the ...

Astronomers have revealed new evidence that there are not just one but four tiny planets circling around Barnard's Star, the second-nearest star system to Earth. Astronomers have revealed new evidence ...