Earth: As seen from the sky

In between the moon and the stars From NASA comes this amazing 3-1/2 minute video of scenes of Earth shot by Expedition 30 crew aboard the International Space Station. Check out a sky-high view of auroras, lightning, oceans, and nighttime light displays from all over the planet. These are the clips...

World population: The boys win

Boys : Girls For all of recorded history, more baby boys have been born than girls. This holds true around the world, with the small country of Liechtenstein in Central Europe having the largest boy to girl ratio — 1.26 boys for every girl born (or 5 boys to every 4 girls). There are just three...