Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

An unusual object detected streaking across the sky last month was a comet that originated outside our solar system, observations have confirmed, becoming only the second observed interstellar object ...

A brand-new group of frozen objects, orbiting the sun out beyond the distant Kuiper Belt, has been spotted by the Subaru telescope, working with NASA's New Horizons mission to find new targets for the ...