At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest ...

But long before the Pluto “controversy,” other objects moved on and off the official list of solar system planets. Indeed, a kindergartener in the early 1800s would have learned that Ceres was ...

So on Pluto’s day of demotion, we celebrate how the lonely dwarf planet has forever changed our view of our solar system. The “killing” of the planet was actually more of an involuntary ...

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 ...

Even though Pluto was demoted from a planet to a dwarf planet in 2006, it's still part of the Solar System. It orbits at the very edge of it, in a mysterious zone of icy objects known as the ...

The sun's influence reaches much further out into space than the eight planets that orbit around it. Beyond Neptune, the solar system stretches out to around 100 astronomical units (AU), which is ...

"Orbiting at the edge of the outer Solar System, Pluto is an intriguing object in astronomy. Since the fascinating events surrounding its discovery, it has helped increase our understanding of the ...

There is always the option to drop a small black hole into Pluto or shrink the solar system around it. Those may be tougher to accomplish, but our hosts are up to the challenge.

Whatevermay be, the hot toy this Christmas may just be a polystyrene solar system kit,Pluto not included. Defining Moments: The Saga's History.

Pluto will be a dazzling destination in itself, and this first visit could also give us clues to how our own planet formed, and to the ancient upheavals that shaped the solar system.