SETI
Latest about SETI

Where are all the aliens? Maybe space weather is scrambling their transmissions
By Keith Cooper published
We may be missing alien radio signals because they have become smeared beyond the narrowband detectors that SETI utilizes, a new study suggests.

Astronomers searching for alien life are sharpening our cosmic clocks. Here's why
By Sharmila Kuthunur published
Tiny delays in pulsar signals measured by SETI scientists could aid the search for gravitational waves and extraterrestrial life.

This SETI program is chasing down its final 100 signals. Could one of them be from aliens?
By Keith Cooper published
SETI@home has been one of the largest citizen science projects ever, with millions of users around the world.

SETI's 'Noah’s Ark' – a space historian explores how the advent of radio astronomy led to the USSR’s search for extraterrestrial life
By Gabriela Radulescu published
An expert dives into the history of radio astronomy and the search for life beyond our Earth.

No near neighbors: Closest technologically advanced aliens may be 33,000 light-years from Earth
By Stefanie Waldek published
A new study suggests that, without plate tectonics and the right balance of carbon dioxide and oxygen, advanced alien civilizations may be exceedingly rare.

If aliens explore space like humans do, NASA scientists know where to look for their signals
By Robert Lea published
Studying the signals that humanity beams through the solar system has allowed a team of NASA researchers to pinpoint where and when astronomers should hunt for alien technosignatures.

Could deciphering dolphin language help us communicate with ET?
By Leonard David published
There are creatures here on Earth that may give us clues about how to communicate with extraterrestrial intelligence — dolphins, which are famously social and smart.

The Fermi Paradox: Where are all the aliens?
By Daisy Dobrijevic last updated
Reference The Fermi Paradox seeks to answer the question of where the aliens are. After all, the universe is incredibly old, big and filled with potentially habitable planets.
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