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 ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

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 ...