Extraterrestrial life
Stephen Hawking and Billionaire to Hunt Aliens
Acclaimed physicist set to announce a "new space exploration initiative" on Tuesday.
Long-Lasting Rivers, Lakes Once Covered Mars, Researchers Say
New findings bolster the idea that life once existed on the red planet.
Saturn's Moon Enceladus Has a Global Ocean Beneath Its Surface
The discovery means Enceladus is one of our best hopes for extraterrestrial life.
Stephen Hawking Teams Up With Russian Billionaire for $100 Million Alien Search
The 10-year project will involve scouring 1 million stars and 100 galaxies for signs of life.
Aliens Are Enormous, Science Suggests
According to a new study, humans are probably smaller than most other intelligent beings, if they exist.
Japan's Defense Minister Swears There's No Alien Threat
Japan's defense minister said warplanes will be dispatched at reports of extraterrestrial life.
Planetary Hunt Yields Four New 'Earth Twins'
Astronomers find eight planets in the habitable zones of the stars they orbit. Four of them could be called Earth twins.
ET Calling
Scientists are gathering information from massive radio telescopes to improve chances of tapping into extraterrestrial 'phone calls'
