An international team of astronomers has discovered eight new extrasolar planets, bringing to nearly 80 the number of planets found orbiting nearby stars. The latest discoveries, supported by the ...

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 ...

The orbits of the planets around the sun have been the source for many a scientific debate. Their current orbital properties are well understood but the planetary orbits have evolved and changed since ...

A massive interstellar object passing through our solar system during its formative years likely altered the orbits of planets into trajectories observed today, a new study says. Interactions with ...

Something unusual seems to be lurking at the far edge of our Solar System. Some think it could be a hidden, oversized planet.

EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

Astronomers have discovered an uncommon star system located just 100 light-years away from us, with six planets huddled immensely close to their host star — so close, in fact, that all their orbits ...

Computer simulations have revealed a plausible explanation for a phenomenon that has puzzled astronomers: Rather than occupying orbits at regular distances from a star, giant gas planets similar to ...

Add Yahoo as a preferred source to see more of our stories on Google. An orange star is orbited by six planets, each a different color. their orbits are outlined with white circles. Astronomers have ...

At the center of our solar system, the sun influences every planet that orbits it. In two recent studies, scientists ...

Jupiter is the largest planet in the Solar System, a massive gas giant so enormous that its gravitational influence reaches ...