We currently know of more than 5,800 planets beyond the solar system, but we've only found the tiniest fraction of the exoplanets that astronomers think lie elsewhere in the universe.

Recently, there has been exciting news in the field of astronomy! Chinese scientists have discovered oxygen on exoplanets, ...

Astronomers have found planets that are twice as wide as Jupiter and more than 10 times as heavy, but there's a limit to how big planets can get.

There are about 700 quintillion terrestrial exoplanets in the visible universe and they are on average a few billion years older than Earth. Our planet is also in the minority when it comes to ...

Every planet in our solar system is essentially round. But out in the universe, are there any planets that aren't spherical? Technically, planets are round, by definition; they need to have enough ...

For decades, astronomers have wondered what the very first stars in the universe were like. These stars formed new chemical ...

The universe is full of wonders, but some worlds are downright deadly. From searing heat to violent storms, these planets make Earth look like a paradise. Many of them challenge everything we know ...

The universe is vast — possibly even infinite — and in the scheme of things, our planet is tiny. Even in our own solar system, Earth is dwarfed by gas giants like Jupiter. But are there bigger ...

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...