The US space agency's New Horizons probe has made contact with Earth to confirm its successful flyby of the icy world known as Ultima Thule. The encounter occurred some 6.5bn km (4bn miles ...

NASA’s New Horizons spacecraft has been speeding through space since early 2006 and it’s about to make what might be its most interesting flyby to date. After speeding past Jupiter and Pluto ...

For decades, astronomers suspected that Pluto and Charon formed through a process similar to Earth and the Moon. This theory, ...

Billions of years ago, two icy worlds—Pluto and Chron—collided in the farthest reaches of our solar system. But rather than ...

Until now, the thinking was that Pluto and Charon formed like Earth and our Moon. New research has flipped that script.