One of humanity’s most profound questions is whether life exists beyond Earth — and if so, what forms it might take. For ...

What if billions of years ago, the Red Planet had rain, snow, and even rivers that carved out landscapes much like those we ...

What Cassini Saw — and What It Didn’t Why are Titan’s river deltas missing? Planetary scientist Beth Johnson chats with Brown University’s Sam Birch to explore a strange and unexpected mystery on ...

An international leader in the movement of integrating art and science. The AIR program connects contemporary artists with SETI Institute researchers and facilitates an exchange of ideas to catalyze ...

SETI is a generic acronym that stands for the Search for Extraterrestrial Intelligence. Scientists doing SETI experiments are looking for proof – not merely of life elsewhere – but of intelligent ...

The question “are we alone in the universe?” has fascinated people for centuries. In 1959 two Cornell University physicists described how we might answer that question through interstellar ...

In 1974, the most powerful broadcast ever deliberately beamed into space was made from Puerto Rico. The broadcast formed part of the ceremonies held to mark a major upgrade to the Arecibo Radio ...

Project Phoenix was the world's most sensitive and comprehensive search for extraterrestrial intelligence that had been conducted up until approximately 2015. It was an effort to detect ...

Is there some evidence suggesting that humans are the Galaxy’s only intelligent species? Enrico Fermi thought so – and he was a pretty smart guy. Could he be right? In 1950, the famous physicist made ...

Planetary geologist John Marshall specializes in the study of particulate matter –dust and sand-size materials that comprise nebulae clouds, volcanic eruptions, dust storms, sand dunes, beach and ...

Project Phoenix, like all SETI efforts, was a passive experiment, designed only to look for signals, not to send them. However, humankind has been unintentionally transmitting signals into space - ...

In the summer of 1950, several scientists were discussing extraterrestrial intelligence over lunch. Responding to the claim that intelligent life must be commonplace throughout the universe, the Nobel ...