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Mars May have Reserves of Water.
July 26, 2001
Callisto Might Have an Ocean Too
Mars May have Reserves of Water
star Forming Region Captured by Hubble
Terra Catches Mt. Etna Eruption
CALLISTO MIGHT HAVE AN OCEAN TOO
Astronomers have long suspected that there's a ocean of water underneath the surface of Jupiter's Moon Europa, but now a Spanish researcher believes Callisto might be a good candidate as well. Based on the fact that the Galileo spacecraft detected a magnetic field but no metallic core as it flew past the moon, Javier Ruiz believes there's 20km deep ocean located 150km underneath the surface. A salty ocean can create a magnetic field around a Moon or planet.
MARS MAY HAVE RESERVES OF WATER
A new analysis of the images taken by the Mars Global Surveyor spacecraft has turned up evidence that there may be large deposits of water ice near the surface. A survey of over 8,000 Surveyor photos by researchers at Brown University found that terrain at mid-latitudes was mostly smooth, with very few impact craters. The team believes that water has collected inside a porous layer of dust between 1 and 10 meters deep across large areas of the surface. If this water is there, it will be a critical resource for future human missions to the Red Planet.
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STAR FORMING REGION CAPTURED BY HUBBLE
A new photograph released from NASA's Hubble Space Telescope shows a beautiful view of a star forming region in the Nebula 30 Doradus, located in the Large Magellanic Cloud, a Galaxy located only 170,000 light years from Earth. The photograph shows how the region is both creating stars in nursaries of gas and dust, and destroying others in waves of intense radiation.
TERRA CATCHES MT. ETNA ERUPTION
New images taken by the NASA's Terra spacecraft show incredible detail of an eruption on Sicily's Mt. Etna on July 22, 2001. Two distinct plumes can be seen emanating from the Volcano and drifting off to the SouthEast; the top, brighter one is ash, while the lower, more diffuse one is composed of water vapour and sulphuric acid. The eruption closed the local airport and caused a state of emergency in the town of Nicolosi.
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