Scientists examine evidence about Neanderthals that sheds light on the hominids, who died off some 30,000 years ago. See the 2010 reconstruction of the Neanderthal genome, which posits that modern humans and Neanderthals interbred.
Satellite data is transformed into visual sequences that detail the interwoven forces that sustain life on Earth. Included: how dust from the Sahara fertilizes the Amazon; how a vast underwater "waterfall" off Antarctica helps drive ocean currents.