Top news for December 21, 2008

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We carry DNA from extinct cousins like Neanderthals. Science is now revealing their genetic legacy

NASA's OSIRIS-REx asteroid sample return to Earth: Live updates

Fixing Air Pollution Could Dramatically Improve Health Disparities

People Who Are Changing the Environment One Community at a Time

Valley Fever Is a Growing Fungal Threat to Outdoor Workers

In Hospitals, Viruses Are Everywhere. Masks Are Not.

More People Die from Venomous Snakebites Each Year Than Have Ever Died from Ebola

Discrimination Has Trapped People of Color in Unhealthy Urban 'Heat Islands'

OSIRIS-REx's Asteroid Samples Are Finally Down to Earth

NASA Heads For ‘God Of Chaos’ Asteroid After Acing Sample Drop