"When TESS launched, no one expected it to ever be capable of finding this kind of planet." When you purchase through links ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

Get your eyes on the seventh planet, and you can graduate as a skywatcher — and there's a perfect way to cheat this week as ...