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SETI Institute


JWST reveals a race against time for forming planets

Researchers studied 72 young Sun-like stars and their protoplanetary disks, finding that different types of winds are more important at different stages in a planetary system's early life. The study shows that gas giants like Jupiter must assemble their massive atmospheres quickly before winds carry that raw material away.

SourceSETI Institute·JournalThe Astronomical Journal·DateAug 25, 2026

New study reveals how space rocks become meteorites

Researchers identified seven distinct phases in the journey from space rock to meteorite, with melting and fragmentation controlling mass loss and slowing down. The study used 75 meteorite falls and found that melting causes most of the rock's mass loss, with rocks breaking apart at specific altitudes.

SourceSETI Institute·JournalMeteoritics and Planetary Science·DateAug 24, 2026

Beyond Disclosure Day: The real-world protocols

The IAA SETI Committee has updated the post-detection protocols for evaluating and revealing extraterrestrial intelligence, emphasizing rigorous verification and global risk communication. The revised Declaration of Principles acknowledges the expanded search efforts and modern challenges, including protections for researchers and reco...

Why SETI might have been missing alien signals

A new study by the SETI Institute suggests that stellar activity and plasma turbulence near a transmitting planet can broaden an otherwise ultra-narrow signal, spreading its power across more frequencies. This makes it more difficult to detect in traditional narrowband searches.

SourceSETI Institute·JournalThe Astrophysical Journal·DateMar 5, 2026

Saturn's moon Titan could have formed in a merger of two old moons

A new study suggests that Saturn's largest moon, Titan, formed from a merger of two earlier moons, and this event may also be linked to the formation of Saturn's rings. The research proposes that Titan is the product of a collision between an extra moon and itself, resulting in the creation of fragments near Titan's orbit.

SourceSETI Institute·JournalThe Planetary Science Journal·DateFeb 11, 2026

What if we find nothing in our search for life beyond Earth?

A recent study by ETH Zurich researchers suggests that if scientists examine 40–80 planets and find no signs of life, they can confidently conclude that fewer than 10–20% of similar planets harbor life. This finding would enable scientists to put a meaningful upper limit on the prevalence of life in the universe.

SourceSETI Institute·JournalThe Astronomical Journal·DateApr 7, 2025

Earth detecting Earth

Researchers found that radio signals, such as planetary radar emissions, are the most detectable technosignatures, visible from up to 12,000 light-years away. Atmospheric technosignatures like nitrogen dioxide emissions can be detected from 5.7 light-years away with the upcoming Habitable Worlds Observatory.

SourceSETI Institute·JournalThe Astronomical Journal·DateFeb 3, 2025

SETI Forward recognizes tomorrow’s cosmic pioneers

The SETI Institute's 2024 Forward Award recipients, Gabriella Rizzo and Pritvik Sinhadc, conducted innovative research on extremophiles in deep-sea hydrothermal vents and gravitational wave signals. Their work has the potential to reveal new life forms and technosignatures, pushing humanity's understanding of the universe and our place...

Team unlocks new insights on pulsar signals

A study published in The Astrophysical Journal reveals that pulsar signals change as they move through the interstellar medium, highlighting a need for updates to current ISM density models. The research found that models incorporating galactic structures tend to better fit the data, but predictions of newly discovered pulsars were worse.

SourceSETI Institute·JournalThe Astrophysical Journal·DateNov 26, 2024