The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else ...

The discovery boosts the chances of finding extraterrestrial life.

Astronomers have discovered a faint new world orbiting a young star after more than a decade of cosmic hide-and-seek.

Astronomers have discovered a rocky exoplanet that has an atmosphere and sits within the habitable zone of a solar system.

In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere ...

It’s the first potentially habitable world known to host an atmosphere, making it a lead contender in the search for life ...

A giant planet had been hiding inside one of astronomy’s most closely studied planetary systems, concealed by a bright disk of cosmic dust. Webb revealed Beta Pictoris d through atmospheric traces of ...

A star located about 1,300 light-years from Earth shows signs of having devoured one of its planets — and is now gearing up ...

New observations of WD 1856 b, a gas giant closely orbiting a white dwarf, offer a preview of what could happen to Jupiter and Saturn after the sun dies in about five billion years.

Astronomers using NASA's James Webb Space Telescope have discovered a giant planet outside our solar system, called an ...

A team of astronomers has discovered a third planet orbiting the star Beta Pictoris. The new planet, Beta Pictoris d, is 100 times fainter than Beta Pictoris b—the first planet discovered in the same ...