Shackleton's final ship is no longer just a sonar shadow

An expedition led by the Royal Canadian Geographical Society in partnership with Woods Hole Oceanographic Institution has obtained the first close-up images of the wreck of Quest, the last ship of famed Antarctic explorer ...

Q&A: Unforeseen consequences of the 'great aging' of America

The average life span for Americans hovered around 40 years for the first 100 years of the nation's existence. But after 1880, breakthroughs in modern medicine and public health resulted in a dramatic rise in life expectancy. ...

page 1 from 10