According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

The colour of mine matches the Mission to Pluto pretty well, and I like how the strap is embellished with both “Speedmaster” ...

The theory could explain how the dwarf planet (yeah, we wish Pluto was still a planet, too) could snare a moon that is around half its size. The team behind this research thinks that two frigid ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Dwarf planet Pluto and our Earth are the only two worlds in our solar system with very large moons. These may have come about by a "kiss and capture" process, which preserves a moon's large size.

For me, the owner of a Mission to Pluto, this was an instant-buy ... Ideally you’ll want to pick the size of strap where no Velcro is left exposed when the strap is tightened.

Charon is unusual because it is the largest moon in the solar system compared with its parent body. In fact, Charon and Pluto are so similar in size that they are considered a double dwarf planet ...

Burrowing under soil opens up a whole new world, especially when that soil is on other planets. Getting under the top layer ...