A NEWLY discovered rogue planet without a host star like the sun to orbit around has been detected dashing through space on ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

The newly discovered TOI 451 planetary system features three planets orbiting the same sun. CREDIT Illustration courtesy of NASA/Goddard Space Flight Center A newly discovered planetary system will ...

Some 3,000 light years away from Earth, researchers believe they have found an Earth-size exoplanet orbiting a sun-like star. The star is known as Kepler-160, and it was observed during NASA’s ...

Astronomers have detected a newly discovered rogue planet navigating alone through the Milky Way, signifying the first time ...

Most exoplanets—bodies orbiting stars other than the sun—are too far away for us to be able to send probes to. So it's no wonder that the discovery of a possible habitable planet around the sun's ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

People sometimes ask what would happen if the Sun suddenly exploded, often after seeing a dramatic film or picture online. It ...