More than 1 million "interstellar objects" the size of the Statue of Liberty could be drifting unseen in the outer solar ...

The search for interstellar visitors has taken an unexpected turn. While previous discoveries like ‘Oumuamua and Comet ...

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.

The solar system is made up of the Sun (our nearest star) and the objects that orbit around it, including planets, asteroids and comets. Planets orbit the Sun in roughly circular paths ...

Scientists say the number of alien objects entering our solar system will also increase exponentially ... in the past that have risen on the risk list and eventually dropped off as more data ...

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 ...

And tantalizingly, what they found suggests that our solar system may already be flooded with visitors from the star system, which is about 4.25 light years away. These objects range from ...

Knowing that these objects are quietly floating just beyond our solar system is both fascinating and humbling. While the risk of a major collision is low, their presence gives us insight into the ...