Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

Pluto was long considered our ninth planet, but the International Astronomical Union reclassified Pluto as a dwarf planet in ...

Pluto once held its place proudly as the ninth planet in our solar system,a distant, icy world on the edge of the cosmic frontier. But in 2006, everything changed. This in-depth explainer unpacks the ...

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

Ice loss from Antarctica is increasing, but the flat surfaces act as barriers to ice flow and may currently be regulating the ...

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

Calling all dreamers! This is the week to set intentions and watch them bloom. Venus in Gemini aspects pragmatic Saturn and ...

Calling all dreamers! This is the week to set intentions and watch them bloom. Venus in Gemini aspects pragmatic Saturn and ...

The proliferation of TV shows about alien life forms (like Resident Alien, Alien: Earth, The View and presidential news ...

Discover the most magical dining spots at Disney World with character meals, themed treats, and unforgettable flavors!

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

It took over nine years for New Horizons to reach Pluto after blasting off atop an Atlas 5 rocket on Jan. 19, 2006. After ...