Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

The first image of the whole Earth from space came in 1972, when astronauts Ron Evans or Harrison Schmitt took a photo from onboard Apollo 17 while headed to the Moon. This was the first time that an ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the ...

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible ...

Venus dominates as the brilliant “Morning Star” in the east-southeast before dawn; the Eta Aquariid meteor shower takes place ...

Using the Hubble Space Telescope and an array of other instruments, astronomers have probed supernova wreckage in the Large ...