... Forty years ago, in December of 1968, the Apollo 8 crew flew from the Earth to the Moon and back again. ... Is this coat hanger a star cluster or an asterism? ... Tomorrow's solstice marks the southernmost point of the Sun's annual motion through planet Earth's sky and the astronomical beginning of winter in the north. ... The 16th century Portuguese navigator Ferdinand Magellan and his crew had plenty of time to study the southern sky during the first circumnavigation of planet Earth. ... December ...