Despite common assumptions, the disk of our Solar ... System into what it is today, and that the interloping object’s closest approach to the Sun must have been less than 20 AU (1 AU is the ...

NASA artist’s conception of a brown dwarf (main) and stock image of the planets in the solar system (inset). An object between 2 and 50 times the mass of Jupiter may have flown through our ...

NASA said the system is thought to be moving at least 1.2 million miler per hour, nearly twice as fast as our solar system.

"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

It's now relatively clear objects from outside of our Solar System tumble towards the Sun's mass from time to time, typically picking up enough speed over astronomical distances to shoot ... finding ...

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

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.