Are we alone in the universe? Live Science follows the researchers trying to answer that question and reports on what we've learned about aliens. From how scientists search for extraterrestrial life and whether the U.S. government is hiding evidence of "non-human intelligence" to the strange, scientific excuses for why humans haven't found aliens yet and the disturbing reason why aliens may never have visited Earth, our expert writers and editors tackle it all with the latest news, features and articles about extraterrestrial life.
Discover more about extraterrestrial life
—Aliens: Facts about extraterrestrial life and how scientists are looking for it
Latest about Extraterrestrial Life
Where could alien life exist in our solar system?
The solar system has eight planets and hundreds of moons. Could extraterrestrials live on any of them?
Camera trap in Chile detects strange lights blazing through the wilderness. Researchers are scrambling to explain them.
Will the James Webb telescope finally lead us to alien life?
Three years into its mission, the James Webb Space Telescope has advanced the search for alien life more than any machine before it. What will it find next?
Cosmic rays could help support alien life on worlds outside the 'Goldilocks zone'
A new study suggests that cosmic radiation could potentially provide the energy to kick-start extraterrestrial life deep beneath the surface of icy worlds like Mars, Europa and Enceladus.
Controversial paper questions whether interstellar visitor 3I/ATLAS is 'possibly hostile' alien tech in disguise
A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar to claims made about 'Oumuamua. But experts have called it "nonsense".
Aliens: Facts about extraterrestrial life and how scientists are looking for it
Discover interesting facts about where alien life forms are likely to exist, and what they look like.
'Strange' star pulses detected in search for extraterrestrial intelligence
A retired researcher has detected an unusual pulse in the light of nearby stars while looking for signs of extraterrestrial intelligence. Aliens are one possible explanation for the strange signal, but as with every other unexplained space phenomenon, it's probably not aliens.
Did the James Webb telescope really discover aliens? The truth about K2-18b.
A study suggesting the exoplanet K2-18b shows potential signs of alien life has been met with skepticism from the scientific community. Here’s the truth about what the James Webb Space Telescope saw.
