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 ...

IT has a surface temperature of minus 225 degrees Celsius and was once the ninth and most distant planet from the Sun. Pluto is about one-sixth the width of Earth, at just 1,420 miles in diameter. It ...

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 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 ...

IT has a surface temperature of minus 225 degrees Celsius and was once the ninth and most distant planet from the Sun. But how big is it? Here’s all you need to ...

PLUTO was once considered the ninth and most distant planet from the sun but is now the largest known dwarf planet in the solar system. But how big is Pluto and how ...

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 — At the risk of an upset stomach, Chuck Tatro plans to make good on a nearly decade-old promise Tuesday. As part of the Kennedy Space Center team that helped ready the New Horizons ...

BUFFALO, N.Y. – Back in 1930, it was an easy answer – Pluto was a planet because we couldn’t see anything else brighter at a similar distance away from us, says Dejan Stojkovic, an associate professor ...

Pluto's topography—including its massive heart-shaped feature—may influence its atmosphere more than researchers once thought. New research published this week suggests plumes of nitrogen that ...