The search for extraterrestrial intelligence (SETI) is a multidisciplinary research area focused on detecting evidence of technologically advanced civilizations beyond Earth, primarily through their electromagnetic emissions or technosignatures. It integrates radio astronomy, signal processing, astrophysics, planetary science, and increasingly machine learning to monitor and analyze vast bandwidths of the sky for narrowband, pulsed, or otherwise non-natural signals. Research addresses detection algorithms, interference mitigation, instrument calibration, and statistical frameworks for evaluating candidate signals. Modern SETI also explores non-radio channels, including optical or infrared beacons and other engineered signatures, and develops quantitative strategies for survey design, target selection, and constraints on the prevalence of technological life.
The Search for Extraterrestrial Intelligence (SETI) has a data scale problem. There are just too many places to look for an interstellar signal, and even if you're looking in the right place you could be looking at the wrong ...
Astronomy
Oct 1, 2025
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For decades, scientists engaged in the Search for Extraterrestrial Intelligence (SETI) have probed the galaxy for signs of artificial radio transmissions. Beginning with Project Ozma in 1960, astronomers have used radio antennas ...
Astronomy
Oct 1, 2025
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Is life possible—or has it ever been possible—on other planets? The (Origin of) Life Marker Chip (LMCOOL) seeks the answer. This innovative chip is being developed by a Dutch consortium led by TU Delft. UT researcher Jurriaan ...
Astrobiology
Sep 23, 2025
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Florida Tech astrophysicist Howard Chen is offering new insights to help aid NASA's search for life beyond Earth. His latest theoretical work investigates the TRAPPIST-1 planetary system, one of the most widely studied exoplanetary ...
Astrobiology
Sep 18, 2025
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56
The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, so no single planet is ...
Planetary Sciences
Sep 17, 2025
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200
The closest technological species to us in the Milky Way galaxy could be 33,000 light years away and their civilization would have to be at least 280,000 years, and possibly millions of years, old if they are to exist at ...
Astrobiology
Sep 12, 2025
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TRAPPIST-1 is a red dwarf star located about 40 light years away that hosts seven Earth-sized rocky planets, with at least three orbiting in the habitable zone where liquid water could potentially exist. This makes it one ...
Astrobiology
Sep 11, 2025
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Just over a year ago, NASA made a remarkable announcement. The Perseverance rover had found potential signs of ancient life on Mars. Now, the technical details behind that discovery have been published in a Nature paper that, ...
Astrobiology
Sep 11, 2025
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80
A new AI-powered tool has reduced astronomers' workload by 85%—filtering through thousands of data alerts to identify the few genuine signals caused by supernovae (powerful explosions from dying stars). The findings are published ...
Astronomy
Sep 9, 2025
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56
The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.
Planetary Sciences
Sep 9, 2025
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