Alpha Centauri, part of the three-star system closet to our own, is often posed in science fiction as humanity's first hop ...

The confirmation of the gas giant planet would mark a milestone as the closest planet to Earth that orbits in a habitable ...

A giant planet may be orbiting the nearest Sun-like star to Earth, and the discovery is sparking excitement across the ...

Scientists have found strong evidence of a giant gas planet in the nearest star system to our own. At four-and-a-half light ...

Astronomers from around the world have made a groundbreaking discovery within the Milky Way Galaxy that promises to offer ...

NASA artist's depiction of an extra-solar system crowded with giant planets. Scientists have found that the presence of gas giants in a solar system is likely to prevent life from forming.

A gas giant is a large planet that is not primarily composed of rock or other solid matter. Gas giants may have a rocky or metallic core—in fact, such a core is thought to be required for a gas ...

But not every gas giant is so lucky; some of them should be too close to their parent stars, where their volatile gas atmospheres are boiled away. Here’s what’s left behind.