Astronomy Picture of Day: Saturn# Astronomy - 天文
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Cassini Approaches Saturn
Credit: Cassini Imaging Team, SWRI, JPL, ESA, NASA
Explanation: Cassini, a robot spacecraft launched in 1997 by NASA, is close enough now to
resolve many rings and moons of its destination planet: Saturn. The spacecraft has closed to
about two Earth-Sun separations from the ringed giant. Last month, Cassini snapped several
images during an engineering test. These images have been combined into the
contrast-enhanced color composite pictured above. Saturn's r
Credit: Cassini Imaging Team, SWRI, JPL, ESA, NASA
Explanation: Cassini, a robot spacecraft launched in 1997 by NASA, is close enough now to
resolve many rings and moons of its destination planet: Saturn. The spacecraft has closed to
about two Earth-Sun separations from the ringed giant. Last month, Cassini snapped several
images during an engineering test. These images have been combined into the
contrast-enhanced color composite pictured above. Saturn's r