We’ve all seen pictures of the Apollo 17 astronauts walking on the Moon in 1972. And while some people still refuse to believe this happened, NASA is setting its sights on the Moon again. Starting in ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

NEW YORK (AP) — Six planets are hanging out in the sky this month in what’s known as a planetary parade. Catch the spectacle while you can because it’s the last one of the year. These linkups happen ...

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record ...

Astronomers have discovered seeds of rocky planets forming in the gas around the baby sunlike star providing *** peek into the start of our own solar system. The the thing that we've discovered is ...