Olfactory dysfunction, the scientific term for a sub-par sniffer, is a strong indicator of imminent death, researchers found.

By Nora Daly

In space, green beans taste like grass and sliced strawberries are repulsively sweet. That's according to NASA astronaut Douglas Wheelock, who spent more than 178 days living -- and eating -- aboard the International Space Station and space shuttle Discovery.

By Talia Mindich