Astronauts on NASA's Artemis moon missions might look for signs of life in shadowed polar craters — life that could have traveled with people from Earth.
A new search for extraterrestrial life has scientists looking inward — toward the center of our galaxy.
The Rocket Lab's pioneering private mission to Venus, which had been set to launch last month, has been delayed until at least 2025.
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.
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.
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.
A new project called 'A Sign in Space' will give scientists and laypeople around the world practice at decoding a message from intelligent aliens.
A newfound exoplanet that lies 90 light-years from Earth may be studded with active volcanoes, whose emissions could sustain an atmosphere.
NASA's TESS spacecraft spotted two super-Earth planets as they crossed the face of their star within its 'habitable zone.'
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.
Intelligent aliens looking for life in the universe might be able to find Earth using our radio signals, a new SETI study suggests.
New research suggests that Hycean exoplanets would suffer from a catastrophic runaway greenhouse effect, causing their oceans to boil away.
NASA's Transiting Exoplanet Survey Satellite, or TESS, is now in its fifth year scanning the sky for new worlds.
The Pentagon's new UFO office has no evidence of any extraterrestrial or extraordinary objects.
Reference Mars, the fourth planet from the sun is famed for its rusty red appearance. Here we explore the Red Planet in more detail and see why scientists find it so intriguing.
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.
A newly developed machine-learning tool could help scientists search for signs of life on Mars and other alien worlds.
A draft paper by a Harvard scientist and the head of the Pentagon's UFO office has raised the idea an alien mothership could be in the solar system, sending out tiny probes dubbed "dandelion seeds" to explore the planets within.
Astrobiologists should examine space dust and other exoplanetary debris to search for the existence of life beyond Earth, a new study suggests.
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.