Unlike how scientists believe Earth's moon formed billions of years ago, Pluto and its biggest moon, Charon, didn't have a messy breakup. New computer simulations show the primitive dwarf planet and ...

Finally, a family portrait of Pluto is beginning to emerge! For the first time ever, astronomers have captured two never-before-photographed moons orbiting Pluto. NASA's New Horizons spacecraft ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite of enhanced color images of Pluto and Charon taken by NASA's New Horizons spacecraft ...

But as researchers have discovered more moonlike objects in our solar system—including 128 moons orbiting Saturn just this ...

WASHINGTON — Spurned Pluto is changing its looks, donning more rouge in its complexion and altering its iceball surface here and there. Color astronomers surprised. Newly released Hubble Space ...

Discovered: The Hubble telescope finds a fifth moon circling lowly non-planet Pluto; global warming takes a toll on cows; watching nanoparticles break up blood clots is fun; scorpion venom is actually ...