What If on MSN

Have we already made contact with aliens?

Since the 1960s, scientists working with SETI (Search for Extraterrestrial Intelligence) have been monitoring the universe for artificial radio signals. The idea is simple. If another civilization ...
Slurrp on MSN

If Aliens Landed Tomorrow, What Would They Eat?

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.