NASA’sNew Horizons spacecraft has delivered extraordinary video footage showing towering ice mountains on Pluto’s moon Nix.

LAUREL, Md. — NASA’s New Horizons spacecraft, which flew past Pluto in 2015, will zip past another icy world nicknamed Ultima Thule on New Year’s Day, gathering information on what is believed to be a ...

Researchers simulated how gravitational collapse forms two-lobed contact binaries in the Kuiper Belt without destructive collisions.

Anyone who’s passionate about astronomy and outer space knows that few things can compare to the grandeur and beauty of deep space photography, and on that front, NASA’s New Horizons spacecraft is ...

Pluto, reveal thyself, and Earthlings, enjoy the show. On Tuesday, NASA's New Horizons spacecraft will sweep past Pluto and present the previously unexplored world in all its icy glory. It promises to ...

Astronomers have puzzled for years over a strange pattern in the outer solar system. A surprising number of icy bodies far beyond Neptune resemble snowmen, made of two rounded lobes stuck together.

NASA'S New Horizons Pluto probe is getting an early workout in the Jupiter system as it uses the gas giant's gravity for a 9,000-mph. boost in speed for the final leg of its journey. The probe will ...