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

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

While planets circle the sun in what's called and heliocentric orbit, they rarely fall together in what appears to the human ...

We'll see six planets in the first part of February – Mars, Jupiter, Uranus, Neptune, Venus and Saturn – and on Feb. 28, they'll be joined by Mercury. But not all of them will be visible to ...

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

"A parade of planets, also sometimes referred to as a planetary alignment, is when several planets in our solar system appear ...

Sky watchers are in for a treat this month as the stars align to give amateurs a shot to see six planets at once.

The visiting objects that yielded these near-match scenarios ranged from two to 50 times the size of Jupiter and plunged deep into the inner solar system, traveling far beyond Uranus' orbit and ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade". Throughout much of January and February, Venus, Mars, Jupiter, Saturn, ...

The visitors in 1% of simulations dove straight into the solar system, travelling past Uranus' orbit and some even grazed Mercury's path and they ranged from two to 50 times the mass of Jupiter.

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.