Simultaneously cooling Pluto while energizing atmospheric molecules to allow them to escape into space, Pluto's haze plays a ...

After traveling billions of kilometers, NASA’s New Horizons gave us one final gift - images of Pluto and Arrokoth that no spacecraft may ever surpass. These are the last direct observations of two icy ...

Many people hold Pluto close in their hearts and refuse to abandon the assertion that it is a planet, although science ...

The new object is one of the most distant visible objects in our solar system. Astronomers have indeed discovered a potential new dwarf planet in the outer reaches of our solar system, far beyond ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image comparing the relative sizes of our solar system's known dwarf planets ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

In 2006, updated research led to Pluto being controversially demoted to dwarf planet status by the International Astronomical Union. The reasoning was that Pluto's location in the far-flung Trans ...

Jim Christy was simply trying to pin down the orbits of moons in the outer solar system when he discovered that what appeared to be the elongated axis of Pluto was actually a moon or a co-planet ...

The TNO is potentially large enough to qualify as a dwarf planet, the same category as the much more well-known Pluto. The new object is one of the most distant visible objects in our solar system ...

If you could travel in a straight line at highway speed (approximately 60 mph or 100 km/h), the drive to Pluto, which is the outermost farthest-out dwarf planet that defines the edge of our solar ...