The Science of Pluto: The Gates of the Planetary Underworld (Part 1)

A computer-generated impression of the view from the surface of Pluto. The Sun looks like a very bright star on the sky (upper right), while Charon, Pluto’s biggest satellite, looms large near the horizon (at left). The scientific study of the Pluto-Charon system, has been one of expanding horizons and increased awareness of […]

Ghost of Comet ISON Rises Like an Icy Phoenix After Suicidal Kamikaze Visit With the Sun

ISON appears as a white smear heading up and away from the Sun. ISON was not visible during its closest approach to the Sun, so many scientists thought it had disintegrated, but images like this one from the ESA/NASA Solar and Heliospheric Observatory suggest that a small nucleus may be intact. Image/Caption Credit: […]