Ever since humans gazed at the night sky, we’ve been drawn to that tiny reddish dot hovering above. Mars has captivated our ...

Will a human ever celebrate a 150th birthday? You bet, says Stephen Austad, a biology of ageing researcher at the University of Alabama at Birmingham. Austad is so sure that life expectancy is poised ...

About 70,000 years ago in Africa, humans expanded into more extreme environments, a new study finds, setting the stage for our global migration. By Carl Zimmer Geography is one of the things that sets ...