Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be possible. Around the small star LHS 1903, a dense rocky world orbits on ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Mars, Jupiter, Saturn and ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

The planets around a nearby star seem to be in the wrong order, hinting that they formed through a different mechanism than the familiar one by which most systems grow ...

Tylos (or WASP-121b) is a gaseous, giant exoplanet located some 900 light-years away in the constellation Puppis. Astronomers have used four massive telescopes in Chile to look into a planet's ...

Forget weird sun protective glasses and solar eclipses, there’s a new space phenomenon in town. It’s charted in the stars that all seven other planets will align to put on a celestial show, or ...

Sky gazers across the U.S. will have a chance to see an extraordinary celestial event on Friday as all of the planets in our solar system will appear in the evening sky. This phenomenon known as a ...