The closest exoplanets to the Solar System are around the red dwarf Proxima Centauri. This little star is orbiting two bigger ...

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

The second planet from the sun was the beginning of a new apparition — a period when a planet is visible in the night sky — that will last for the remainder of 2025.

Astronomers found strong evidence that a gassy Jupiter-size world is orbiting one of three stars in the stellar system ...

The second planet from the sun, Venus is sometimes called Earth's twin because it is not only our closest planetary neighbor, but it's also similar in structure and size to our planet.

Planet to cross sun's face Tuesday. Watch, but protect your eyes. June 1, 2012 — -- Watch with care. Tuesday afternoon, U.S. time, we earthlings will be treated to the rare spectacle of a ...