Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more detailed analyses verify preliminary observations from the James Webb ...

Exoplanet hunters Christopher Watson and Annelies Mortier explain the long search for a 'twin Earth' capable of sustaining ...

Astronomers have identified dozens of Earth-like exoplanets orbiting distant stars — worlds with familiar temperatures, rocky ...

Many planets featured in Star Trek TNG share traits that scientists now look for when identifying exoplanets: rocky terrain, ...

"Trying to use our Earth and solar system as the example of what exoplanets should be like led to a big surprise," he told Space.com. "The first planets that were discovered were nothing like the ...