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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image comparing the relative sizes of our solar system's known dwarf planets, ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally published at The Conversation. The publication contributed the ...