It's remarkably similar to Earth.

WASHINGTON – For the first time astronomers have discovered a planet outside our solar system that is potentially habitable, with Earth-like temperatures, a find researchers described Tuesday as a big ...

Astronomers studying the outer solar system have reported a new finding about Makemake, one of the dwarf planets beyond Neptune. According to recent research, the icy body shows evidence of methane ...

Astronomers have identified a giant planet circling a tiny red dwarf star at a distance so extreme that it sits about 690 times farther from its star than Earth is from the Sun. The discovery pushes ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...

HD 137010 b, a new Earth-like planet found 146 light-years away, may be habitable. Discovered by NASA Kepler data, further ...

A young star called V1298 Tau is giving astronomers a front-row seat to the birth of the galaxy’s most common planets. Four ...

The blockbuster film Avatar featured a planet imagined to be circling Alpha Centauri B, the star closest to our sun. Now astronomers have discovered there really might be a system of planets there.

V1298 Tau links swollen young worlds to the compact planets that astronomers keep finding, and its timing signals made that ...