How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space that only radio waves can reveal — and makes the case for contacting aliens.

There are few ideas in science that capture the imagination quite like the search for extraterrestrial life. From Mars missions and exoplanet surveys to SETI's decades-long hunt for signals, ...

Some of our SETI Institute team members at Pixar Animation Studios. A new documentary film, recently released, celebrates first contact with aliens and highlights the importance of SETI research in ...

The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations. It’s an age-old question: Do aliens exist? And what are the odds we’ll make contact? A famous ...