It’s a conundrum.” ...

Some solitary planets wander through interstellar space, offering unexpected surprises about their formation and evolution. Astronomers recently observed a particularly remarkable case in the ...

Scientists are puzzled by the discovery of massive gas giants, far larger than Jupiter, orbiting a distant star, challenging traditional planet formation theories.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Astronomers have spotted a ...

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 ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't have hard surfaces. Jupiter and Saturn are the gas giants in our solar ...

The formation of planets is a fascinating process. They usually originate in a disc of dust and gas surrounding stars. When particles come together, they form a clump, and through a process called ...

New research using NASA’s James Webb Space Telescope examines the maximum sizes of gas giant exoplanets, measuring chemical compositions and formation processes in the HR 8799 system.

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

At first, the universe was like a hot stew. Instead of carrots and potatoes, it had particles. As the soupy universe cooled, ...