Repeated signals from the center of the Milky Way could be aliens saying hello, new study claims
A new search for extraterrestrial life has scientists looking inward — toward the center of our galaxy.
Search for Life
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1st-ever private Venus mission delayed until at least 2025
The Rocket Lab's pioneering private mission to Venus, which had been set to launch last month, has been delayed until at least 2025.
UFOs worth investigating despite lack of 'real evidence,' former astronaut Scott Kelly says
Four-time astronaut Scott Kelly spoke with Space.com about UFOs and why air and space are so 'prone to optical illusions' that lead to reports of unidentified anomalous phenomena.
UFOs will remain mysterious without better data, NASA study team says
During the opening remarks in today's meeting of NASA's UAP study team, members stressed that the biggest roadblock standing between us and understanding unidentified phenomena is a lack of data.
'Alien' signal beamed to Earth from Mars in SETI test
A European Mars orbiter beamed a coded message to Earth today (May 24), kicking off a weeks-long project designed to help us prep for a real signal from E.T.
How would we decode a message from ET? New project will give us a trial run
A new project called 'A Sign in Space' will give scientists and laypeople around the world practice at decoding a message from intelligent aliens.
Volcanoes may carpet surface of newfound Earth-size exoplanet
A newfound exoplanet that lies 90 light-years from Earth may be studded with active volcanoes, whose emissions could sustain an atmosphere.
2 'super-Earth' exoplanets spotted in habitable zone of nearby star
NASA's TESS spacecraft spotted two super-Earth planets as they crossed the face of their star within its 'habitable zone.'
The 10 most Earth-like exoplanets
Reference Scientists have found nearly 5,000 exoplanets since the first such world was confirmed orbiting a sunlike star in 1995. These ones are most similar to Earth.
Will SpaceX's Starlink megaconstellation make Earth more detectable to aliens?
Intelligent aliens looking for life in the universe might be able to find Earth using our radio signals, a new SETI study suggests.
'Hycean' exoplanets may not be able to support life after all
New research suggests that Hycean exoplanets would suffer from a catastrophic runaway greenhouse effect, causing their oceans to boil away.
NASA's TESS exoplanet-hunting satellite celebrates 5 years in space
NASA's Transiting Exoplanet Survey Satellite, or TESS, is now in its fifth year scanning the sky for new worlds.
Pentagon has 'no credible evidence' of aliens or UFOs that defy physics
The Pentagon's new UFO office has no evidence of any extraterrestrial or extraordinary objects.
Saturn moon Titan could hold the clues to life's origin. This NASA drone could find them
The Dragonfly rotorcraft-lander will be one of NASA's most diversely capable planetary exploration craft that will be used to search for signs of life on Saturn's moon Titan.
Artificial intelligence could help hunt for life on Mars and other alien worlds
A newly developed machine-learning tool could help scientists search for signs of life on Mars and other alien worlds.
Space dust could carry alien life across the galaxy, study suggests
Astrobiologists should examine space dust and other exoplanetary debris to search for the existence of life beyond Earth, a new study suggests.
Building block of life found in sample from asteroid Ryugu
An organic compound that's part of the RNA molecules that transmit genetic information in cells has been discovered in samples from the asteroid Ryugu, suggesting the stuff of life came from space.
How much water lurks beneath an exoplanet's surface? New tool could help astronomers tell
A new method could allow astronomers to assess exoplanets' likely subsurface water stores, aiding the search for worlds capable of supporting life as we know it.
