The biggest planet in our Solar System just got a little smaller. Okay, not physically, but our measurements of Jupiter just got more precise, and it turns out there's slightly less of the giant than ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

Some of the planets in our Solar System are gigantic. But what if they got even bigger? Let’s go up the planetary size chart and see what kind of chaos doubling the size of every planet would make.

Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...