Despite initial speculation that Pluto could be similar to Neptune's moon Triton, early data from NASA's New Horizons spacecraft shows Pluto is a different beast indeed.
As NASA's New Horizons spacecraft careens through the solar system with Pluto in its cross-hairs, new detail in the dwarf planet's surface is popping into view at an ever increasing rate.
Strange and violent events maybe taking place on Pluto -- just in time for the New Horizons spacecraft to take a closer look.
As we wait in anticipation for NASA's New Horizons probe to make its historic Pluto flyby on July 14, 2015, the mission is about to cross another milestone. Continue reading →
A scientist has created the best-ever global color map of Neptune's big moon Triton, using images taken by a NASA spacecraft 25 years ago.
See cold, distant Neptune and its moon Triton as you've never seen them before -- through the eyes of the Keck infrared observatory.