Alligators live in bacteria-filled swamps and rarely get sick. The hidden chemistry inside their blood could help fight the superbugs that antibiotics can no longer kill.

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

After the famed Betty and Barney Hill encounter in 1961, alleged alien abductions were everywhere—and most of the tales followed the same patterns.