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Are we alone?
Let’s find out.
Leading the search for life beyond Earth. The SETI Institute is a 501(c)(3) nonprofit dedicated to finding out.
Press Release
Using game theory and the Allen Telescope Array, researchers are testing whether extraterrestrial civilizations might choose a predictable moment to contact Earth.
In The News
If evidence of life or technology beyond Earth is out there, how will we recognize it? That question ran through much of the work SETI Institute scientists discussed this month.
Press Release
Through collaborations with SETI Institute scientists, they will bring fresh creative perspectives to fundamental questions about life, intelligence and consciousness.
Press Release
The SETI Institute and the Royal Commission for AlUla (RCU) installed and commissioned two LaserSETI stations at AlUla Manara in northwest Saudi Arabia.
News
Join us as we follow Dale back to Lake Untersee in Antarctica and explore, virtually, the hidden world beneath its thick ice. There, a microbial ecosystem dominated by cyanobacteria offers a window into Earth’s earliest biosphere.
Happy 65th Anniversary to the Drake Equation!
Frank Drake with the Drake equation
November 1-3, 1961 in West Virginia
- What It Is: A probabilistic formula, devised by Dr. Frank Drake in 1961, to estimate the number of communicative civilizations in the Milky Way.
- Purpose: Serves as a conceptual roadmap for astrobiology and the search for extraterrestrial intelligence (SETI).
Key Variables Include:
- R*: Rate of star formation
- fₚ: Fraction of stars with planets
- nₑ: Planets per star capable of supporting life
- fₗ, fᵢ, fc: Fractions relating to life, intelligence, and detectable communication
- L: Longevity of civilizations
- Why It Matters: Guides scientific inquiry into extraterrestrial life—driving research on exoplanets, astrobiology, and SETI efforts.
News
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Nov 11, 2026 • PPOD
This week, we explore the universe through the eyes of spacecraft and space telescopes, from Hera’s first view of the Didymos asteroid system to Hubble’s gravitational lensing observations, a ghostly stellar nursery, and JWST’s infrared portrait of Jupiter. We also look back more than 450 years to Tycho’s supernova, whose expanding debris continues to reveal the dramatic aftermath of a stellar explosion.
Nov 9, 2026 • Blog • Astronomy • Spectroscopy • Franck Marchis
Nov 6, 2026 • SETI Institute in the News • SETI • Sofia Sheikh • Lewis Pinault • Astrobiology • Mohit Melwani Daswani • Mars • Bill Diamond • Project Ozma • Frank Drake • Drake Equation • Peter Jenniskens • Meteorites
Nov 9, 2026 • Blog • Astronomy • Spectroscopy • Franck Marchis
Nov 6, 2026 • SETI Institute in the News • SETI • Sofia Sheikh • Lewis Pinault • Astrobiology • Mohit Melwani Daswani • Mars • Bill Diamond • Project Ozma • Frank Drake • Drake Equation • Peter Jenniskens • Meteorites
SETI Institute
Postdoctoral Fellowship Opportunities
About
What We Do
At the SETI Institute, we explore the origins of life, the search for extraterrestrial intelligence, and the mysteries of the cosmos. Through cutting-edge research, education programs, and public outreach, we strive to expand humanity's understanding of the universe.
We lead scientific investigations into planetary environments, astrobiology, and the search for life beyond Earth.
Our educational initiatives inspire and train the next generation of scientists, fostering curiosity and innovation.
We engage the public with space science and discovery, making complex scientific ideas accessible and exciting for all.
Careers
Searching for life
is a team sport.
Want to join?
Research
Featured Projects
ATA • Radio Astronomy • Hat Creek Radio Observatory • HCRO
The ATA is the first radio telescope designed from the ground up to be used for SETI searches.
#ATA
#Radio Astronomy
#Hat Creek Radio Observatory
#HCRO
COSMIC • VLA
The Commensal Open-Source Multimode Interferometer Cluster (COSMIC) is a new commensal Ethernet-based digital signal processing backend and computer cluster on the VLA in New Mexico operated through the NRAO.
#COSMIC
#VLA
Discovery and Futures Lab
What happens if life beyond Earth is discovered? The Discovery and Futures Lab at the SETI Institute fosters novel and anticipatory research at the intersection of science, society, our planet, and the search for life beyond Earth.
#Discovery and Futures Lab
Mar 24, 2025
The ATA is the first radio telescope designed from the ground up to be used for SETI searches.
#ATA
#Radio Astronomy
#Hat Creek Radio Observatory
#HCRO
Mar 24, 2025
The Commensal Open-Source Multimode Interferometer Cluster (COSMIC) is a new commensal Ethernet-based digital signal processing backend and computer cluster on the VLA in New Mexico operated through the NRAO.
#COSMIC
#VLA
Apr 16, 2026
What happens if life beyond Earth is discovered? The Discovery and Futures Lab at the SETI Institute fosters novel and anticipatory research at the intersection of science, society, our planet, and the search for life beyond Earth.
#Discovery and Futures Lab
Research
Key Research
Concepts
Video
How SETI Designed A Telescope To Look For Extraterrestrial Civilizations
Support Us
Support the
SETI Institute
Scientists are getting closer in their search for life beyond earth. But with limited federal funding for the search for extraterrestrial intelligence, supporters are the reason cutting-edge scientists can keep their eyes on the sky.
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