In this idea, life’s first steps may have happened inside sticky gels attached to surfaces, similar in some ways to modern microbial biofilms. Biofilms are the thin layers of bacteria you see on rocks ...

Scientists from the Max Planck Institute for Extraterrestrial Physics have spotted the largest complex molecule in deep space ever.

Harvard scientist Avi Loeb suggests comet 3I/ATLAS may be an alien vessel seeding life, after NASA's SPHEREx spacecraft detected unexplained methane and organic chemicals on board.

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

A 13-atom molecule containing sulfur has been discovered in interstellar space for the first time, providing insight into the origins of the chemistry of life.

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

The complex building blocks of life can form spontaneously in space, a new lab experiment shows.

In a groundbreaking observation, astronomers have detected the first ever radio signal from the interstellar comet 3I/ATLAS, an object originating from outside our solar system. This unusual signal ...

"The universe is a pretty big place. So if it's just us... seems like an awful waste of space," goes a line from the 1997 film "Contact." In the movie, Jodie Foster plays Dr. Ellie Arroway, a radio ...

For decades, humanity has sought answers to one of the most profound questions in science: are we alone in the universe? The search forextraterrestrial life has led to groundbreaking discoveries, from ...