Astronomers confirm TOI-5573 b, a rare, miniature Saturn-like planet orbiting a small star, challenging theories of planetary ...

The best solar telescopes give you close-up views of our star without damaging your eyes, perfect for sun-gazing this summer. Watch out for big savings this Prime Day.

A coronal hole in the sun could result in visible auroras over about 15 U.S. states tonight (June 25), with the Space Weather ...