The National Aeronautics and Space Administration has issued a warning that two giant asteroids are set to have a close ...

The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, ...

Now, a team of astronomers has discovered what they think are the rocky innards of a giant planet that's missing its thick atmosphere. Their findings have been published in the journal Nature.

A massive space rock, estimated to be the size of ... Early in Earth’s history, space rocks frequently hit the young planet. It is estimated that “giant impactors,” greater than 6.2 miles ...

The gas giant planet's spots and swirls come from massive storms that whip up prevailing winds as fast as 335 miles an hour at the equator—faster than any known winds on Earth. Jupiter is a ...

By observing the anomalies in the Earth's mantle and comparing them to matter surrounding them, the researchers suggested ...

Every time a planet has been found orbiting its star that closely before, it has either been a huge gas giant, similar to Jupiter, or a barren tiny rock planet smaller than Earth. "We expect ...

When two giant planets collide, an even bigger world may be born. Based on new simulations, scientists believe that giant gas planets across the universe can often collide and merge into even ...

Samples of rock from the moon ... This was also the first step towards our planet developing plate tectonics. Plate tectonics describes the giant “plates” of crust that slowly move around Earth’s ...