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Stories by Joe Rao

See the Moon and Mars Meet Up in Night Sky Saturday

From the eastern U.S. and Canada, the closest approach will take place after sunset. From the central Pacific Ocean, Hawaii, western portions of Central America and the northern half of South America, the moon will occult Mars

July 5, 2014 — Joe Rao y

Dec. 21: The Winter Solstice Explained

For northern latitudes, the solstice marks the beginning of winter, but ancient skywatchers didn't understand the sun's migration, fearing it could disappear forever as it dipped below the horizon

December 21, 2012 — Joe Rao and
Stories by Joe Rao

Science for the Modern World