dec 112013
 
Life on the Moons of Jupiter and Saturn through Panspermia?

  A new study suggests the possibility of transfer of life from the inner Solar System to the moons orbiting Jupiter and Saturn, although very rare, cannot be ruled out. A comparison portrait of Jupiter’s four Galilean moons Io, Europa, Ganymede, and Callisto, each with different characteristics. (In this image composite, Jupiter is not at [continue reading]

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]

mrt 072013
 
Gas Giant Planets Can Handle It All

  New theoretical modeling by Carnegie’s Alan Boss provides clues to how the gas giant planets in our Solar System—Jupiter and Saturn—might have formed and evolved. His work was published recently by The Astrophysical Journal. Jupiter, the largest planet — a gas giant — in our Solar System. Image Credit: NASA/JPL/U.S. Geological Survey New stars are [continue reading]

jan 292013
 
Io's Volcanism Controls Jupiter's Auroral Activity

  Jupiter’s volcanic moon Io spews out volcanic gas, which reaches its atmosphere and becomes ionized, forming what is known as the Io plasma torus. This plasma torus can interact with Jupiter’s magnetosphere, possibly affecting auroral activity there. This ultraviolet image of Jupiter was taken with the Hubble Space Telescope Imaging Spectrograph (STIS) on 26 [continue reading]

sep 262012
 
Does Jupiter's Moon Europa Have a Subsurface Ocean?

  Europa, the enigmatic moon of Jupiter, is believed to be home to a subsurface ocean of liquid water. However, future missions to explore Europa’s ocean may need to dig deep. Research suggests that water does not stay in a liquid state near Europa’s surface for longer than a few tens of thousands of years [continue reading]

sep 132012
 
Explosion on Jupiter Spotted

  Astronomer Dan Peterson of Racine in Wisconsin observed an apparent impact on Jupiter early Monday that created a large, bright fireball on the planet. He was observing the largest planet in our Solar System with his 12-inch telescope when the event occurred. Dan Petersen reported the sighting on the ALPO_Jupiter forum. Jupiter Impact 10 [continue reading]