Seasoned adventurer Sir Ranulph Fiennes has had to quit his attempt to be the first person to cross the South Pole on skis during the brutal Antarctic winter.
David S. McKay, a pioneering NASA scientist in moon and Mars research, astrobiology and space resource utilization, has died, leaving a legacy of work that will continue to shape the future of space exploration. He was 76.
Taking vitamin D and calcium supplements may not help prevent bone fractures in postmenopausal women, according to a new report from a government-appointed panel of experts.
Extreme weather events have been on the rise in the last few decades, and man-made climate change may be causing them by interfering with global air-flow patterns, according to new research.