Extraterrestrial life

Do you care about the search for extraterrestrial intelligence? Let these researchers know.

The conference about a "major new science mission" will be held at 4 p.m. EDT.

The ocean is thought to be be billions of years old and may contain as much as three times the volume of all the liquid water on Earth.

Build-ups of toxic gases in the atmospheres of many exoplanets in the "habitable zone" could limit the "safe zone" in which life outside our solar system could actually exist.

NASA's James Webb Telescope will open up an entirely new avenue for searching for extraterrestrial life.

Former Democratic Senator Harry Reid wants the U.S. to obtain UFO technology before China and Russia.

Study examines the Fermi Paradox—that aliens should exist, but we have not found them.

Physics may ensure speciation is only possible within a narrow band, a new book argues, lending credence to our human-centric depiction science fiction depictions of extraterrestrial life.

The plot of 'The Predator' bears some striking similarities to testimony made by believers in alien conspiracy theories.

Scientists think life might survive on Proxima b, in spite of powerful lashings from its host star.

Four disc shaped objects prompted various conspiracy theories.

George Van Tassel's Integratron, subject of new documentary "Calling All Earthlings," was built from alien blueprints to reverse aging, travel through time and produce free energy.

The scientists will study what's happening 3,000 feet below the ocean's surface, above what will one day become the newest island in the chain.

New disclosures from inside the Pentagon's Top Secret UFO program include the connection between aliens, poltergeists, extra dimensions and "bizarre creatures."

Some scientists really do think it's possible.

Terrestrial life is intimately influenced by the tilt of Earth's axis, so it shouldn't surprise us if the same is true elsewhere.

Where do they come from? How do they work? And of course, will they help us find aliens?

Europa Clipper is scheduled to leave for the moon in the 2020s.

Astronomers will comb through millions of stars in the search.

Can MUFON, the premiere UFO sightings and investigation organization, recover from a wave of resignations after a racist Facebook post?

Stronger gravity requires stronger—and pricier—rockets to overcome.

This is what NASA's brand new telescope can and can't learn about exoplanets.

There are about 400 subglacial lakes around the world, but these are the first scientists believe to be salty.

The moon was described as the "most promising" candidate for finding life in the solar system.

Are we looking for aliens in the wrong way?

Reports claim Aldrin and other astronauts have passed lie detector tests regarding their claims they have seen UFOs.

"I think people didn't really think about [phosphorus]" in comparison to ingredients like carbon and water, Greaves told Newsweek. "It's kind of a nice opportunity to go, 'Look, this matters and it's not super hard.'"

Scientists are training artificial neural networks to predict the probability of life on other planets.

Are we really alone?

Scientists identified the fingerprint of climate change while pretending they knew nothing about Earth.