Pluto's Unnamed Moons Given Names by IAU

Two newly discovered moons orbiting Pluto have been given official names by the International Astronomical Union. Image Credit: NASA / STSci

Two of Pluto’s small moons, previously known just as P4 and P5, have been given official names by the International Astronomical Union (IAU). Pluto is the god of the underworld in classical […]

Undiscovered Country: Of New Horizons and the Kuiper Belt

Neptune’s largest moon, Triton, seen here in an image from the Voyager 2 flyby, is thought to be a captured Kuiper Belt Object. Photo Credit: NASA.

Starting at about the orbit of Neptune and stretching out to roughly 50 astronomical units (1 AU = Earth-Sun distance), or 7.5 billion kilometers from the Sun, […]

Sunday Photo Spotlight: PanSTARRS Dances With Andromeda

Photo Credit: Chris Cook / cookphoto.com

This past Tuesday, photographer Chris Cook snapped this image of M31 (Messier 31), more commonly known as the Andromeda Galaxy. It shared the sky with the PanSTARRS comet, which is making its way through the solar system.

Cook produced this composite image by conducting four 20-second exposures […]