Pluto is so far away from Earth that everything we know about it can be written down on a couple of 3 x 5 inch index cards. But Pluto will come into clearer focus in a few years' time, though, as NASA ...

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 has captivated space enthusiasts and scientists alike, but many facts about this dwarf planet are still misunderstood. From its distant orbit to the surprising brightness of New Horizons images, ...

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural Sciences, has discovered an extraordinary trans-Neptunian object (TNO), ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its status as the ninth planet in our Solar System. From that day forward, ...

Pluto, with its heart-shaped glacier, as captured by the New Horizons spacecraftJPL/NASA Pluto will mark a birthday of sorts on March 23, 2178. No one is likely to be there to celebrate it, of course.

Pluto was discovered at Lowell Observatory in Flagstaff, Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. When you purchase through links on our site, we may earn an affiliate ...

Pluto, the most famous dwarf planet, lost its planet status in 2006. Learn more about dwarf planets of the solar system here. NASA's Dawn spacecraft has been granted a mission extension that will ...