Exoplanets

A distant star system housing 6 planets that move in 'mathematically perfect' orbits has ignited a search for possible alien technosignatures.

New radar images show surprise changes to the doomed ERS-2 spacecraft as it tumbled through Earth's atmosphere on Feb. 21.

The James Webb Space Telescope has detected two alien planets orbiting white dwarfs, the collapsed husks of once-mighty stars. The discovery offers a hint of what our solar system will look like after the sun's eventual demise.

Team "pro-exomoon" is back to defend the discovery of the first and only exomoons potentially seen by humanity.

A bizarre object discovered by the James Webb Space Telescope may be a pair of 'rogue' planets ― but a new study finds they are emitting radio signals rarely seen from other worlds.

The young sun may have captured several Mars- or Mercury-size exoplanets that now orbit in the outer reaches of the solar system, but identifying them will be extremely challenging.

Scientists have proposed a new technique to help researchers identify oceans on exoplanets — a key step to finding life outside our planet.

A new NASA survey identified 17 exoplanets that may have the right conditions for liquid water oceans hidden beneath icy shells. The planets could be good candidates in the search for alien life.

The massive planet LHS 3154b orbits a star much smaller than Earth's sun, and its discovery could upend everything we think we know about how solar systems form.

Six exoplanets with sizes between Earth and Neptune have been in rhythm with each other since they were born around the same star 4 billion years ago, new research suggests.