When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Three decades of finding new worlds Exoplanet science has moved fast since the first confirmed discoveries in the 1990s.

NASA's hunt for alien life may be undermined by its own instruments, according to a group of leading astrobiologists who warn that current tools and mission designs are likely missing subtle, but ...

For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...

Scientists had a mixed response to the announcement of biosignatures spotted on an alien exoplanet. A team of astronomers announced on April 16, 2025, that in the process of studying a planet around ...

The group leading the charge in the search for extraterrestrial life has given the all-clear: an interstellar comet looks to be completely natural and free of any alien tech. The SETI Institute said ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...