On alien worlds, exotic form of ice may transport nutrients to hidden oceans
Alien life in the deep global ocean of a water world could receive its nutrients through a shell of high-pressure ice around the planet's core.
Alien life in the deep global ocean of a water world could receive its nutrients through a shell of high-pressure ice around the planet's core.
Despite the false alarm, SETI researchers are still pretty sure we're not alone in the universe.
The internet is abuzz with rumors that China may have picked up signals from an alien civilization. But the pings are probably just Earthly interference, experts say.
On Sunday (June 12), the car-sized Perseverance Mars rover snapped a photo that could be mistaken for a still from an "Indiana Jones" movie.
Because Earth is the only planet known to host life as we know it, researchers have usually focused on planetary systems similar to our own when searching for extraterrestrial life.
New research calculates the odds that humans will contact a 'malicious' alien civilization that wants to invade our planet. Don't worry, the chances are incredibly small.
A proposed Chinese mission would look for nearby habitable alien worlds by launching a spacecraft to make ultraprecise measurements of how orbiting planets make a star wobble.
What if we thought of our ancestors as a form of alien life?
Harness renewable energy to explore the cosmos or risk planetary doom, new physics study argues.
Tuesday's (May 17) event was the first open congressional hearing about UFOs in more than 50 years.
The U.S. Congress will hold a public hearing tomorrow (May 17) on reports of unidentified aerial phenomena (UAP) skirting through our skies, and you can watch it live.
The U.S. military aims to more systematically classify and characterize reports of unidentified aerial phenomena (UAP), officials said during a congressional hearing on Tuesday (May 17).
Microorganisms living on a large slab of ancient seafloor in the Persian Gulf may reveal clues about life on other planets.
Hauling to Earth samples of Mars that might contain Red Planet life is deemed a low risk affair in terms of ecological and public safety — but that risk is not zero.
Liquid water once shaped the rock inside a meteorite from Mars, but likely did not support any microbial life, a new study finds.
NASA is asking the public to comment on an environmental assessment for its Mars sample return effort.
A radio signal designed to bring Earth's climate crisis to the attention of alien life will be beamed to the TRAPPIST-1 planetary system in October.
China could soon begin its first space-based hunt for exoplanets.