Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift ...

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

Now, according to new research published in Science, astronomers have managed to weigh a rogue planet for the first time. The ...

Gaia data reveals signs of planets forming around young stars by measuring stellar motion, identifying planetary, brown dwarf, and stellar companions in early star systems ...

Astronomers have spotted something unusual, a planet that doesn’t orbit any star. It’s just drifting alone through space.

Quite far beyond the Milky Way is a lone planet that astronomers found new information about. For the first time, scientists ...

Most planets are part of a star system of their own – but some go their own way, and they have remained largely mysterious ...

According to observations of young ridges see on the far side, Earth's moon is not geologically dead, as previously believed.

In a cavernous lab in eastern China, a metal giant is quietly rewriting the rules of gravity. The country has brought online ...

Astronomers have spotted a lonely world roughly the size and mass of Saturn, drifting through the Milky Way without a star to ...

Astronomers have identified a free-floating planet in the Milky Way. This discovery provides direct observational evidence of a low-mass, unbound planetary body.