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 ...

Pluto was once considered one of the solar system’s planets but was later downgraded to the status of ‘dwarf’ planet after several more similarly sized objects were discovered throughout our solar ...

In 2006, Pluto was demoted from planet to “dwarf planet”-a reclassification that satisfied astronomers who felt its mass was too small to be a true planet. However, many people who grew up including ...

CAPE CANAVERAL, Fla. -- Little Pluto is a little bigger than anyone imagined. On the eve of NASA's historic flyby of Pluto, scientists announced the New Horizons spacecraft has nailed the size of the ...

This image, taken by NASA's Hubble Space Telescope, shows five moons orbiting the distant, icy dwarf planet Pluto. The green circle marks the newly discovered moon, designated P5, as photographed by ...

February 18, 1930, is a truly historic day for science, as this was the day Pluto was officially discovered by Clyde W Tombaugh at the Lowell Observatory. This distant icy world is one of the most ...

Many of us harbor nostalgia for the days when Pluto was still classified as one of the solar system’s official planets, but its dwarf planet status didn’t make Pluto any less interesting. During its ...

NASA ’s New Horizon’s probe reached Pluto today. In honor of its arrival, here are nine facts about the former ninth planet. In 2006, the New Horizons probe was launched (Pluto was still considered a ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists announced the discovery of a new moon around Pluto today (July 11), bringing the dwarf ...