alien life

The Earth may be crawling with undiscovered creatures with a different biochemistry to life as we know it.

"'Are we alone?' is one of the biggest unanswered questions," said study first author Howard Chen.

Human's evolved through a series of highly unlikely events—so finding another intelligence like us would be like winning the lottery many times over.

Geochemistry study suggests the interiors of some exoplanets are very similar to that of Earth.

"In the search for life beyond our solar system, the most promising planets might not be Earth twins," says geochemist Stephanie Olson.

Nieves penitentes on Earth's second highest volcano could offer insight in the search for extraterrestrial life.

Breakthrough Listen is a program designed to search for evidence of alien life by scouring the the skies for distant radio signals.

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.

The exoplanet orbits a star that sits just six light-years away from Earth.

"Our work is calling for a complete revision for how we think about the potential for life on Mars."

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

Scientists used artificial intelligence to probe the weird signals.

After a mass UFO sighting in New Jersey, its creators have described the origin of their unknown craft. Hint: trash bags are involved.

The planets could have similar light and temperature conditions to those that may have existed when life first emerged on Earth.

If it's anything like the lake beneath the ice of Antarctica, it might just harbor life.

Ross 128 b is located "just" 11 light-years from Earth.

UFO skepticism has become something of a religion with an agenda.

A stable climate could be key to hosting life.

The moon contains the key requirements for life.

Scientists maintain the search for alien life is far from pointless.

"If you change the earth's climate enough, you might not be able to change it back," an author of the study warns.

Searching for habitable exomoons will "greatly expand" the places we can look for life, a scientist says.

Astronomers will comb through millions of stars in the search.

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.

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

"I think that in this century we are going to be finding life beyond Earth," said Jill Tarter, a scientist at the SETI Institute research center in California.

But there's so much, it might get in the way of detecting life.

"We have no idea what's behind these weird incidents because we're not investigating," Christopher Mellon said.