Once the awe of realizing we are not alone in the universe has settled in, there will be a spirited debate over whether we should send a response to an alien interstellar message.
Once the awe of realizing we are not alone in the universe has settled in, there will be a spirited debate over whether we should send a response to an alien interstellar message.
Deep ocean searchers have found what some are calling a UFO on the ocean floor. But are there other explanations?
Rover "Curiosity" ups the ante in search for life beyond Earth, but can't directly detect Martian life.
Can a planet in a elliptical orbit be habitable if it spends only part of its time in a "Goldilocks" zone?
Yesterday was World UFO Disclosure Day... Did we learn anything new about extraterrestrials?
A recent home video shot over London shows a fleet of UFOs. But is it real?
SETI has shut down its most powerful telescope through lack of funds. It's time for us to step up. What's the search for extraterrestrial intelligence worth to YOU?
Before we send another biology experiment to Mars, let's build our own Martian environment in a lab and see which Earth lifeforms survive.
NASA's Cassini spacecraft has already confirmed the Saturn moon contains a liquid water sub-surface ocean, but it has also found evidence that the ocean might be pretty salty.
