Pluto

NASA's New Horizons spacecraft will fly by the Kuiper Belt object Ultima Thule in the early hours of Jan. 1, 2019, shown here in an artist's illustration. Photo courtesy of NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Steve Gribben

WATCH: NASA’s New Horizons spacecraft to fly past tiny, icy world beyond Pluto

By Associated Press

Four images from New Horizons’ Long Range Reconnaissance Imager (LORRI) were combined with color data from the Ralph instrument to create this sharper global view of Pluto. Photo by NASA

5 things you never knew about the New Horizons mission to Pluto

NASA New Horizons mission leader Alan Stern and astrobiologist David Grinspoon divulge the most intimate accounts of the decades of planning needed for the Pluto probe in the new book “Chasing New Horizons.”…

By Rashmi Shivni

Pluto’s heart may conceal an ocean

Astronomers have just found the best evidence yet of an entire ocean in an exceedingly unlikely place—the dwarf planet Pluto.

By Lee Billings, Scientific American

Why Charon, Pluto’s largest moon, wears a red cap

Charon’s north pole has a dark red color, starkly different from its otherwise grey-white surface, and scientists have finally found out why.

By Leigh Anne Tiffany

What we’ve learned about Pluto since the flyby

NASA's New Horizons mission to Pluto continues to astonish in new set of five studies on the dwarf planet.

By Nsikan Akpan

A giant, unknown planet might exist in our outer solar system

By News Desk

Astronomers at the California Institute of Technology announced on Wednesday they’d found evidence for a massive, faraway planet. If true, it would constitute the ninth planet in our solar system, an honor once bestowed on Pluto. They’ve nicknamed the new…

Pluto gets festive for Christmas in the cosmos

By Justin Scuiletti

On Thursday morning, NASA released a new image of Pluto decked out for the holidays in a festive green and red coloring as its "Image of the Day."…

NASA releases clearest photos of Pluto we may see for decades

By Andrew Mach

NASA released two black and white images of Pluto on Friday, billing them as the dwarf planet's "best close-ups that humans may see for decades."…

NASA carefully steers New Horizons mission toward second target

By Joshua Barajas

Flight controllers initiated the first of four maneuvers Thursday needed to change New Horizons’ trajectory toward an object elsewhere in the Kuiper Belt.