What NASA found on Pluto has raised serious questions. During a historic mission, NASA made a surprising discovery on the ...

Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies in the outer solar system. They had expected to find that the surfaces of ...

JWST detected carbon dioxide and hydrogen peroxide on Charon's surface. Hydrogen peroxide suggests ongoing chemical reactions on Charon. Charon's carbon dioxide likely came from below its surface.

Pluto’s frozen face looks dead at first glance, but its most famous feature hints at something far stranger than a simple ice ...

The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's atmosphere, while at the same time giving methane and other organic ...

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ago, ...

Scientists expected Pluto’s surface to be pocked with craters. Its orbit traverses the Kuiper Belt, which is filled with up to a trillion icy objects. Repeat collisions are inevitable over billions of ...

NASA's New Horizons spacecraft, carrying the ashes of the late Clyde Tombaugh, flew less than 8,000 miles from the surface of Pluto at 4:49 a.m. Arizona time today. The mission celebrated with the ...

MOUNTAIN VIEW, Calif. -- NASA just received a signal back from New Horizons, confirming a successful first flyby of Pluto. Euphoria broke out at NASA as Pluto is now the most distant object reached by ...