Even though astronomers didn’t detect alien tech signals from a rare interstellar visitor, the results are worthwhile, they ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

The largest magnetic map of the universe ever produced—five times larger than all previous efforts combined—marks the ...

You might think you’ve already heard a story about someone marooned on an uninhabited island who needs to fight for survival.

Observations with the Allen Telescope Array set new limits on possible signals from extraterrestrial transmitters.