Observations of Exoplanet WASP-69b has uncovered a 350,000-mile-long comet-like tail. The tail is a result of its escaping ...

Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have been looking for exoplanets orbiting Barnard's Star – the nearest solitary star to our Solar System, at just 5.96 ...

This animation shows magnetic activity in an exoplanet. The planet is a gas giant like Jupiter, but it’s very close to its host star and tidally locked: one side always faces the star and is scorching ...

When a distant exoplanet transits, or crosses in front of its star, it causes a slight dip in the star’s brightness. The Kepler space telescope measures this dip in a star’s brightness over time.

The farthest planet from the Sun, Neptune, is the windiest place in the solar system, with winds that whip through at speeds reaching more than 0.3 miles per second (0.5 kilometers per second). That’s ...