Search for Life

NASA's Perseverance rover is set to cache its first Mars sample in the next few days, kicking off a roughly month-long process that will see the robot drop 10 tubes of Red Planet material.

Two planets found by NASA's retired Kepler Space Telescope may be made mostly of water, according to new research.

As part of the Breakthrough Listen project, the MeerKAT radio telescope will search a million nearby stars for signals from technology that could indicate intelligent extraterrestrial life.

New research solves the puzzle of how amino acids formed within space rocks that bombarded Earth during the violent early epoch of the solar system.

UFOs are making headlines again, but lost in the hype and ruckus is the question of when this all started and how we got to this point.

A new video shows how a team of NASA and European Space Agency spacecraft plan to relay Martian rock samples to Earth.

The aircraft-borne SOFIA telescope could not find signs of a compound possibly linked to biological activity during observations of Venus' atmosphere.

The James Webb Space Telescope has revealed an exoplanet's atmosphere in unprecedented detail, allowing scientists to understand the planet's past and test methods for detecting alien life.

A vent deep under the Arctic ice is surprisingly similar to what may occur on Saturn's icy moon, Enceladus.

Fossils called stromatolites from Western Australia were created by microbes 3.48 billion years ago.

Broccoli, algae and many other plants and microbes on Earth purge toxins by morphing them into gases that might be present in exoplanet atmospheres, signaling life.

An alternative biosignature on alien planets could be the same chemical that makes laughing gas.

A computer simulation of TRAPPIST-1e shows how the James Webb Space Telescope could help the search for habitable alien worlds.

We're unprepared for when E.T. reaches out to us. A team of experts is determined to change that.

The U.S. government has officially started to explain some of the most infamous UFO encounters of the last decade, with China and weather balloons as top offenders.

A recent report about pitch-black "phantom" UFOs in the skies over Ukraine has been discredited by Ukrainian scientists and by Harvard astrophysicist Avi Loeb.

OWLS, the Ocean Worlds Life Surveyor, would autonomously search for life on the icy moons of the outer solar system.

Experiments have shown how the world's hardiest microbe could endure freezing, dry and irradiated conditions on Mars.