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.

An unidentified interstellar object, possibly eight times Jupiter’s mass, may have disrupted the solar system’s planets.

Voyager 1 discovers tiny moon at Saturn. The Dodgers keep adding to their payroll. The two-year-old company raised its previous funding round of $300 million at a $1.5 billion valuation last July from ...

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.

A new study suggests that a close encounter with a massive interstellar object, possibly eight times the mass of Jupiter, may have significantly altered the orbits of the four outer planets in our ...

Look to the southwest sky after sunset on Saturday, as the sliver of a waxing crescent moon nears bright Venus with Saturn ...

Unlike fainter interstellar sights such as the northern ... Technically, this month’s planet parade is already on show. Six planets—Venus, Saturn, Neptune, Uranus, Jupiter, and Mars—have ...