For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

Astronomers have identified an enormous "growth spurt" in a so-called rogue planet. Unlike the planets in our solar system, these objects do not orbit stars, free-floating on their own instead. The ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...

The first picture of a planet outside our solar system may actually depict a swirl of space dust, a new study suggests.

Astronomers have spotted a free-floating ‘rogue’ planet, named Cha 1107-7626, that is going through a massive growth spurt, ...

The exoplanetary zoo hosts a diversity of beasts. There are ‘hot Jupiters’ that whirl closely around their stars, including the planet discovered 30 years ago, which is orbiting the star 51 Pegasi.

What can young planets teach astronomers about the formation and evolution of planets throughout the cosmos? This is what two studies published in The Astrophysical Journal Letters hopes to address as ...

What can planets orbiting red dwarf stars teach scientists about planetary formation and evolution? This is what a recently submitted study hopes to address as an international team of researchers ...

When a Mars-sized meteorite slammed into Earth billions of years ago, the impact completely reset any and all chemical ...

They didn’t use a space telescope, or a huge ground-based scope like the Keck or the Gemini, or even the sort of backyard telescope some planet hunters rely on to gather evidence of alien worlds.

There’s a rule of thumb that can come in handy when you hear about new planet discoveries from the Kepler space mission. If they’re talking about a handful of new worlds orbiting distant stars, it’s ...