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

A type of lichen was able to survive extreme UV radiation in the lab, suggesting that ozone protection might not be required for life on exoplanets.

In this week’s episode of Space Minds David Ariosto sits down Nathalie Cabrol, Director of the Carl Sagan Center at the SETI ...

Stories about the existence of aliens, and our chances of detecting them, tend to be positive. We are told that we might ...

Learn why a lichen found in the Mojave Desert has become key evidence in the search for extraterrestrial life.

Lichen from the Mojave Desert has stunned scientists by surviving months of lethal UVC radiation, suggesting life could exist ...

Astrobiologists thought they saw indications of water vapour. Claims of alien life have popped up throughout the years. Picture: iStock Upon revision, this later turned out to be methane.

But those yearning for credible evidence of alien lifeforms may be in luck, as researchers from the University of Cambridge's Institute of Astronomy claim to have found the most compelling ...

But so far, no solid evidence of life has ever been found beyond the Earth. A paper published in April 2025 claimed to detect a signature of life in the atmosphere of the planet K2-18 b.

A detection of life would be a remarkable development. The astronomer Carl Sagan used the phrase, "Extraordinary claims require extraordinary evidence," in regard to searching for alien life.

Recent James Webb Space Telescope observations suggest potential alien life on exoplanet K2-18b, detecting dimethyl sulfide (DMS), a biosignature on Earth. Past astrobiology findings, like those ...

An artist's impression shows the K2-18b super-Earth, a hycean world where scientists say they have discovered the strongest evidence yet of alien life (University of Cambridge) ...