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 ...

Pluto and Charon don’t behave like a typical planet and moon system. Instead of Charon orbiting inside Pluto’s body, both objects orbit a point in space between them called the barycenter. That’s why ...

On July 14, 2015, NASA's New Horizons spacecraft arrived at Pluto for the first time. The craft flew within 7,700 miles of the planet and is sending back reams of data and the highest resolution ...

NASA's Hubble Space Telescope detected material from a Pluto-like body spiraling into a white dwarf star 260 light-years away from Earth. Credit: NASA / JPL-Caltech / Tim Pyle illustration For the ...

Pluto is the most well-known dwarf planet. NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute . Out beyond Neptune, past Pluto, through the chaos of the Kuiper ...

"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 ...

Decades-old pictures of Pluto’s heart are breaking the Internet again. University of Oxford's Dr Carly Howett explains the science behind the New Horizons mission and that famous 5-billion-kilometre ...

The recent debate over Pluto's status as a planet has spurred a small flurry of books about the coldest, most distant, loneliest, and strangest official outpost of our solar system. Jones, emeritus ...