This icy world, temporarily named 2017 OF201, could be a distant cousin of Pluto — and scientists mean "distant" quite literally. At its farthest point, it's more than 1,600 tim ...

The Pluto flyby was arguably one of 2015’s top ... This summer, they’re hoping to win an extended mission to explore another strange new world. 2014 MU69 is the official name of the icy ...

Nearly two years after its historic encounter with the dwarf planet Pluto, NASA's New Horizons spacecraft ... ancient object located about 1 billion miles beyond Pluto in the Kuiper Belt.

This distant world could potentially ... is currently journeying beyond the Kuiper Belt, the region where Pluto resides. However, even New Horizons has yet to reach the outermost reaches of ...

A newly detected planet beyond Pluto is not just expanding our understanding of the Solar System, it might be quietly rewriting it. Astronomers from the University of Taiwan recen ...

Serendipitously, I happened to be within arm’s reach of several New Horizons scientists ... to NASA for the cash. That world might not be as beloved as Pluto, but it will be a world as ...

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

The probe’s arrival at the dwarf planet nine years later was a stunning moment in space exploration, with New Horizons returning breathtaking images of a surprisingly complex world of craggy ...

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar System.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Our understanding of the solar system is a work in progress. Pluto ...