The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Only a few years ago, astronomers heralded the discovery of a rocky world circling the sun's closest space neighbor, Proxima ...

New findings from the ALMA telescope have revealed that planets are born in much smaller protoplanetary disks than ...

Carbon dioxide detected in the atmosphere of exoplanets. The post Carbon Dioxide in Distant Exoplanets Discovered By ...

The two exoplanets, or planets outside of our solar system, orbit a star called TOI-1453, which is slightly cooler and ...

Astronomers discover a super-Earth and a sub-Neptune 250 light years away from our solar system. These planets offer a ...

The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar ...

So in some sense, alien worlds were not first discovered in the 1990s or even the 1980s. It took nearly a century to fully ...

Astronomers have long suspected that there was at least one exoplanet orbiting Barnard's Star — a red dwarf with a mass ...

More than 60 years after the first debunked discovery of a planet orbiting Barnard’s Star, the closest single-star system to ...

These rather small planets are a stone's throw from Earth in galactic terms, but were too small for previous instruments to ...