An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

All of our solar system's planets are lining up to take part in a rare and awesome event in the night sky - this is when and ...

While claims of a “rare alignment” are overblown, you can still see up to six planets in the night sky this weekend. Here's ...

While the planets are technically always "aligned" along the same plane in our sky, seeing so many at once is a special ...

During just one night in late February, they will be joined by Mercury, a rare seven-planet alignment visible in the sky. But ...

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

An object eight times the mass of ... orbit before shoving four of the solar system's planets onto a different course. When you purchase through links on our site, we may earn an affiliate commission.

possibly eight times the mass of Jupiter, may have significantly altered the orbits of the four outer planets in our solar system. This encounter, occurring billions of years ago, could explain ...