Learn how researchers may have discovered an exomoon about 635 light-years away orbiting gas giant exoplanet WASP-4b. Credits ...

NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover Earth-size planet TOI 700 e. It is "orbiting ...

Some planets take the expression "you're your own worst enemy" to the extreme — triggering stellar flares from their own ...

Earth" that is located about 154 light-years away and is nearly twice as big and four times as massive as our planet.

Last week the James Webb Space Telescope captured a direct image of what they believe to be a previously unknown exoplanet ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

Researchers identified the likely planetary candidate’s infrared light after blocking out its host star’s overwhelming glare ...

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, ...

A unique gas giant has been confirmed through global teamwork, offering insights into planetary formation and future ...

Astronomers using the European Space Agency's Cheops mission have caught an exoplanet that seems to be triggering flares of ...

The clingy planet orbits so close to its star, it triggers powerful explosions of radiation that eat away at its atmosphere.

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.