alien life
Milky Way Could Host Over 42,000 Alien Civilizations, Scientists Estimate
An optimistic calculation suggests the reason we haven't heard from aliens yet is because humans haven't been around for long enough.
How a Simple Gas Could Help Us Find Alien Life
Methane—the greenhouse gas burped out by cows—could be a sign of life on other planets for scientists using the James Webb Space Telescope.
Scientists Warn of Bacterial 'Alien Invasion' Caused by Space Missions
Space missions could also carry "bacterial invaders" to unspoiled alien worlds such as Mars and the moon.
Swarms of Reproducing Alien Probes Could Be Spotted by Huge Radio Telescope
New research suggests that China's FAST telescope could spot self-replicating extraterrestrial technology at the outskirts of the Milky Way.
NASA Mars Photos Show How Rover Made History Collecting 1st Martian Sample
NASA Administrator Bill Nelson described the rover sampling the first core sample ever drilled from an alien world as a "momentous achievement."
This Star Is Home to the Largest Group of Earth-sized Planets Ever Found
The star system contains at least three planets that supposedly lie in a region known as the habitable zone.
Sign of Alien Life May Have Been Found in the Clouds of Venus
Researchers who have observed the planet using the James Clerk Maxwell Telescope (JCMT) in Hawaii, believe there is evidence to suggest alien life may exist on Venus.
There Could Be 36 Intelligent Alien Civilizations in the Milky Way
Researchers say determining intelligence across the galaxy could give clues to our own fate.
Exoplanet Is 'Most Promising Candidate so Far' to Harbor Life: Scientists
"There is a reasonable chance that the planet hosts a large ocean underneath the atmosphere at pressures and temperatures similar to those in the Earth's oceans," researcher Nikku Madhusudhan said.
Scientists Narrow Down Number of Exoplanets Which Could Host Alien Life
"'Are we alone?' is one of the biggest unanswered questions," said study first author Howard Chen.
Humans May Be Only Intelligent Life in the Universe | Opinion
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.
Universe May Be Full of Earth-like Exoplanets
Geochemistry study suggests the interiors of some exoplanets are very similar to that of Earth.
Planets Bursting With Life May Exist Beyond the Solar System: Scientists
"In the search for life beyond our solar system, the most promising planets might not be Earth twins," says geochemist Stephanie Olson.
Weird Ice Daggers in Earth's Highest, Most Extreme Environment Host Life
Nieves penitentes on Earth's second highest volcano could offer insight in the search for extraterrestrial life.
Most Comprehensive Search for Alien Radio Signals Conducted by Scientists
Breakthrough Listen is a program designed to search for evidence of alien life by scouring the the skies for distant radio signals.
Safe Zone Where Alien Life Could Exist May Be Much Smaller Than We Thought
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.
Exomoons May Offer a Better Chance at Finding Alien Life than Planets
NASA's James Webb Telescope will open up an entirely new avenue for searching for extraterrestrial life.
Super Freezing Super-Earth Discovered in Nearby Galaxy
The exoplanet orbits a star that sits just six light-years away from Earth.
Mars Brine Could Hold Enough Oxygen for Small Animals
"Our work is calling for a complete revision for how we think about the potential for life on Mars."
Could Alien Life Survive on Nearby Exoplanet Proxima B?
Scientists think life might survive on Proxima b, in spite of powerful lashings from its host star.
Dozens of Repeating Space Signals Discovered
Scientists used artificial intelligence to probe the weird signals.
2010 UFO Sightings, 2018 Confession
After a mass UFO sighting in New Jersey, its creators have described the origin of their unknown craft. Hint: trash bags are involved.
These Exoplanets May Have the Right Chemistry for Life
The planets could have similar light and temperature conditions to those that may have existed when life first emerged on Earth.
Water on Mars: Scientists Detect Huge Water Reservoir
If it's anything like the lake beneath the ice of Antarctica, it might just harbor life.
Nearby Exoplanet Could Potentially Support Life
Ross 128 b is located "just" 11 light-years from Earth.
Do Aliens Exist? We Should Take the Question Seriously
UFO skepticism has become something of a religion with an agenda.
Earth-Like Exoplanet May Have Seasons, Stable Climate
A stable climate could be key to hosting life.
Enceladus: Saturn's Moon Has Key Requirements for Life
The moon contains the key requirements for life.
Are We Alone in the Universe?
Scientists maintain the search for alien life is far from pointless.
Would Aliens Survive an Environmental Apocalypse?
"If you change the earth's climate enough, you might not be able to change it back," an author of the study warns.