apr 262013
 
Jupiter’s Water Linked to Comet Impact

  ESA’s Herschel space observatory has solved a long-standing mystery as to the origin of water in the upper atmosphere of Jupiter, finding conclusive evidence that it was delivered by the dramatic impact of comet Shoemaker-Levy 9 in July 1994. Hubble view of the impact sites, a few days after the impacts. Image Credit: Hubble Space Telescope [continue reading]

jul 112012
 
Is Winter Creating a Vortex on Titan's South Pole?

  Images from NASA’s Cassini spacecraft show a concentration of high-altitude haze and a vortex materializing at the south pole of Saturn’s moon Titan, signs that the seasons are turning on Saturn’s largest moon. This true color image captured by NASA’S Cassini spacecraft before a distant flyby of Saturn’s moon Titan on June 27, 2012, [continue reading]