The detection of life beyond Earth would be one of the most profound discoveries in the history of science. The Milky Way ...

If confirmed, it would be the first proof of extraterrestrial life and a major leap in man's understanding of the cosmos. A hycean world. Nemes Laszlo/science Photo Library/Getty Images.

New research suggests that the thick, mineral-rich layers of clay found on Mars could hold the key to understanding whether the Red Planet ever harbored life. These layers, thought to have formed ...

NASA has tasked a University of Massachusetts Amherst microbiologist who studies extremophiles with figuring out what aliens ...

Exploring the quest for alien life through Bayesian analysis, emphasizing the importance of asking the right questions in ...

The skepticism and debate around the question of "are we alone in the universe" makes the field of astrobiology more cautious ...

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures ...

This Is the 'Strongest Evidence Yet' of Extraterrestrial Life. The molecules thought to have been found on K2-18b are only produced by life here on Earth.

In April, scientists announced that they had used NASA’s James Webb Space Telescope to find a potential signature of alien ...

Life beyond Earth. This idea has captured minds for ages, sparking just as many debates as there are searches into space. Practically all of our extraterrestrial missions carry some kind of hope ...

Not all of the previous claims for evidence of extraterrestrial life involve the red planet. In 2020, Earth-based observations of Venus's atmosphere implied the presence of low levels of phosphine ...

Short of an alien radio message, spectra of chemicals produced exclusively by living things—called biosignatures—may be the only evidence of life we can collect from planets light-years away.