The revelation that Pluto and its large moon may have collided, causing Pluto to be geologically active, could mean there are ...

Pluto will mark a birthday of sorts on March 23, 2178. No one is likely to be there to celebrate it, of course. Even if ...

Pluto was identified in 1930, but by 1994, it was still little more than a blurry pixelated smudge on astronomers’ screens. Today, we marvel at its icy plains, towering mountains, and stunningly ...

When manipulated, they reveal a wealth of scientific information. This image uses 'false-colour' to show how the geology of Pluto's surface varies. It reveals how much light is reflected by ...

Pluto, discovered in 1930, was once considered the ninth planet in our solar system. In 2006, the International Astronomical Union reclassified Pluto as a dwarf planet because it doesn't meet all ...

Jupiter’s volcanic moon Io has been erupting for billions of years Jupiter’s volcanic moon Io has been erupting for billions of years Did Pluto ever actually stop being a planet? Experts debate.