Science Jun 24

Dawn over Ceres, a mission of humankind

In December 2003, the Hubble Telescope spotted something peculiar on the surface of Ceres, a dwarf planet in the asteroid belt between Mars and Jupiter. Hazy images revealed something bright and mysterious shining on the dark planet’s surface, like animal…

Science Jan 31

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Astronomers Debate Pluto’s Planetary Status

Members of the International Astronomical Union voted in August to reclassify Pluto as a "dwarf planet." Many astronomers, however, are unhappy with the demotion -- they question its scientific validity and the way the decision was made.

After years of debate over Pluto's planetary status, the International Astronomical Union voted Thursday to classify the celestial object as a "dwarf planet," thereby shrinking the number of major planets in the solar system to eight.

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