Add Yahoo as a preferred source to see more of our stories on Google. Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why does Jupiter look like it has a surface – ...

Over the next few weeks, a stunning parade of planets will glow across the night sky, putting on a celestial spectacle that both amateur and seasoned stargazers can easily observe. All month, four ...

CAPE CANAVERAL, Fla. (AP) — A NASA spacecraft rocketed away Monday on a quest to explore Jupiter's tantalizing moon Europa and reveal whether its vast hidden ocean might hold the keys to life. Watch ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on the gas giant—so thick that no spacecraft has been able to measure exactly ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Early risers this month can see a “planet parade” building ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A rare six-planet parade will stretch across the sky before ...