Could This Visitor From Another Star System Be Alien Technology? SETI Investigates

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

This mysterious radio signal has puzzled astronomers for nearly 50 years

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

TESS just found a planet in a new way—and more may be hiding in its eight years of data

For the first time, NASA's TESS (Transiting Exoplanet Survey Satellite) mission has identified a planet orbiting a distant star thanks to its warping of space-time. Unlike the star-hugging transiting ...