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Dawn Spacecraft Begins Approach to Dwarf Planet Ceres
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[quote:Anonymous Coward 60711472:MV8yNzYwOTgzXzQ4MTU2MTE2X0YyQUU4MDUz] Ceres Asteroid [b]Ceres is the largest object in the asteroid belt[/b], which lies between the orbits of Mars and Jupiter. It is composed of rock and ice, is 950 km in diameter, containing a third of the mass of the asteroid belt. Wikipedia: Mass: 895.8E18 kg Orbital period: 1,680 days Gravity: 0.27 m/s² Discovered: January 1, 1801 Orbits: Sun Spectral type: C-type asteroid [/quote]
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Dec 30, 2014: NASA's Dawn spacecraft has entered an approach phase in which it will continue to close in on Ceres, a Texas-sized dwarf planet never before visited by a spacecraft. Dawn launched in 2007 and is scheduled to enter Ceres orbit in March 2015.
"Ceres is almost a complete mystery to us," said Christopher Russell, principal investigator for the Dawn mission, based at the University of California, Los Angeles. "Ceres has no meteorites linked to it to help reveal its secrets. All we can predict with confidence is that we will be surprised."
[
link to science.nasa.gov
]
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