Pluto
Pluto’s Planethood Will Be Decided Shortly
Pluto has been considered a planet since its discovery, but this position has come under threat with the discovery of…
Fast Moving New Horizons Tracks an Asteroid
Still a decade away from its final meeting with Pluto, New Horizons tested out its instruments on a relatively nearby…
Hubble Finds Xena’s Only a Little Bigger Than Pluto
An artist's illustration of Xena with its moon. Image credit: NASA Click to enlarge The powerful Hubble Space Telescope has…
Pluto and Its Moons Were Born Together
Pluto and its three moons. Image credit: Hubble. Click to enlarge. New photographs from the Hubble Space Telescope provide evidence…
Pluto Was Born With Its Moons
Pluto and its three moons were likely formed together when two large objects collided millions of years ago. Charon has…
Podcast: There Goes New Horizons
Take a look through any book on our Solar System, and you'll see beautiful photographs of every planet - except…
The New 10th Planet Is Larger than Pluto
Astronomers have confirmed that the newly discovered 10th planet is larger than Pluto. Nicknamed 2003 UB313 for now, the new…
New Horizons Blasts Off for Pluto
NASA's New Horizons spacecraft finally launched from Cape Canaveral, Florida on January 19th. Travelling away from Earth at a speed…
Charon has no Atmosphere
Astronomers from MIT and Williams College were fortunate enough to be watching Pluto's moon Charon at the moment that it…
Pluto is Colder Than Charon
Pluto is far away from the Sun, so you'd think it should be cold - but it's actually colder than…