In the 1990s, astronomers confirmed the first planets orbiting stars beyond our sun. Since then, the tally has risen steadily, and last year it crossed a striking milestone: more than 6,000 known ...

Planets this big aren't supposed to be found around red dwarfs like TOI-4860. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A massive, ...

Artist’s concept of a Neptune-sized planet, left, around a blue, A-type star. UC Berkeley astronomers have discovered a hard-to-find gas giant around one of these bright, but short-lived, stars, right ...