Tiny delays in pulsar signals measured by SETI scientists could aid the search for gravitational waves and extraterrestrial ...

A distant pulsar’s radio signal flickers as it passes through space, much like stars twinkle in Earth’s atmosphere. By monitoring this effect for 10 months, researchers watched the pattern slowly ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...

The mysterious “Wow!” signal from deep space, caused by a yet unknown astronomical event, was much stronger than previously thought, a new study suggests. “Wow!” is the name given to the enigmatic and ...

A distant blast that kept shining for hours instead of seconds has forced astronomers to rethink how some of the universe’s ...

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

SETI@home has been one of the largest citizen science projects ever, with millions of users around the world.

The Earth is constantly receiving space signals that contain vital information about extremely energetic phenomena. Among the most peculiar are brief pulses of extremely high-energy radio waves, known ...

Radio telescopes let you study the universe by collecting faint radio waves from distant objects. To see extremely small ...

Scientists have detected ancient microwave signals from the universe's early days. These signals, over 13 billion years old, ...