What does a solar system sound like? This animation translates the real orbital paths of a seven-planet exoplanet system into ...

Exomoon discovery: astronomers report the strongest evidence yet for a natural satellite outside our solar system — a Jupiter ...

Astronomers detected a strong 170-day signal suggesting a Jupiter-mass object orbits the brown dwarf CD-35 2722 B. The ...

The newly found object, estimated to be roughly as massive as Jupiter, orbits a brown dwarf—a "failed star"—which in turn ...

Scientists discovered a rare planet larger than Jupiter orbiting a distant star once every 180 days. A planet nearly five ...

As the Solar System orbits the center of the Milky Way every 250 million years or so, it repeatedly passes through the galaxy ...

Astronomers directly imaged a Jupiter-mass object orbiting a brown dwarf 72 light-years away, making it the strongest candidate yet for the first known exomoon.

To find the new object, researchers looked for small wobbles in the brown dwarf, which are caused by the object that orbits ...

Since the first planet beyond our solar system was confirmed in the 1990s, astronomers have gone on to catalogue more than ...

Scientists have discovered a unique planetary system located 71 light-years away, featuring a red dwarf star orbited by a ...

A newly discovered object in a distant solar system doesn’t fit neatly into the current definitions of moon or planet.

What has eluded detection so far have been exosatellites: moons orbiting those remote planets. Our solar system is home to a ...