Discover 'The Backward Planet' GJ 3090 b and other exoplanets with puzzling retrograde orbits. Learn how these cosmic ...

A small world 4.5 times Earth's mass is circling its star in the wrong direction. Normally there's a bully nearby to blame.

Astronomers found a Neptune-sized planet orbiting backwards around its star, but the usual explanation for its bizarre path is nowhere to be found.

A star and its planets form when a cloud of gas and dust collapses in on itself somewhere in space. The cloud then forms a ...

A team of researchers, including those from the University of Tokyo, spotted a rare kind of planet that's unusually hot and eccentric. TOI-1355 b orbits its star, TOI-1355, which is also much hotter ...

The orbits of a seven-planet system discovered in Kepler Space Telescope data has been sonified. Credit: Bishop’s University ...

Learn how the exoplanet GJ 3090 b travels around its host star in a backward orbit, offering new insight into the evolution ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a planetary system with four planets, around a small red star, called LHS1903 with a large reddish-brown ...

New simulations suggest the outer solar system could disassemble within about one billion years after the Sun becomes a white dwarf.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Theorbits of Jupiter, Saturn, Uranus and Neptune may have been altered ...

WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its gaseous ...