Astronomers have used NASA's James Webb Space Telescope to find strong evidence for a planet orbiting a star in the triple ...

One of the brightest stars in the night sky seems to be orbited by a planet like Jupiter. The news is sure to cheer fans of the Avatar series, which centers on a moon that orbits a fictional gas giant ...

Alpha Centauri A, four light-years from Earth, may host a gas giant. If confirmed, no Earthlike planets orbit in the star’s habitable zone.

In some of its most ambitious work yet, the James Webb Space Telescope looked to spot a planet in a potentially habitable ...

This rare planetary alignment will be visible from August 10 but will be best viewed later in the month. Here’s everything ...