Browsing Tag
extraterrestrial life
7 posts
Beyond the habitable zone: Exoplanet atmospheres are the next clue to finding life on planets orbiting distant stars
Some exoplanets, like the one shown in this illustration, may have atmospheres that could make them potentially suitable…
Is it aliens? Why that’s the least important question about interstellar objects
Interstellar comet 3I/ATLAS, captured by NASA’s Hubble Space Telescope captured on July 21 2025. NASA, ESA, David Jewitt…
NASA’s rover finds potential sign of life on Mars
NASA’s Perseverance rover has discovered potential biosignatures in a Martian rock sample, indicating the presence of iron-rich minerals and organic carbon, which suggests a past habitable environment that may have been sustained by microbial life.
Did Cosmic Rays Decide the Shape of Your DNA?
The very twist of your DNA might be a direct consequence of a fundamental asymmetry in the universe, delivered to the primordial Earth by high-energy cosmic rays.
‘Extraordinary claims require extraordinary evidence’ − an astronomer explains how much evidence scientists need to claim discoveries like extraterrestrial life
The universe is filled with countless galaxies, stars and planets. Astronomers may find life one day, but they…
Scientists claim to have found evidence of alien life. But ‘biosignatures’ might hide more than they reveal
Artist’s impression of the exoplanet K2-18b. A. Smith/N. Madhusudhan (University of Cambridge) Campbell Rider, University of Sydney Whether…
The (Possible) Cosmic Origins of DNA
The theory of pseudo-panspermia suggests that the essential building blocks of life, such as amino acids and nucleobases,…