Tag

Seti

All articles tagged with #seti

science5 days ago•50 min saved

Birth-Death Cosmos: Why Exomoons May Unlock the Mystery of Life

David Kipping argues a birth–death model of civilizations better captures the likelihood of intelligent life than the Drake equation, suggesting the cosmos is likely not crowded with technosignatures; he highlights exomoons as promising habitable targets, explains JWST and future missions' roles in studying atmospheres and moons, and warns that biosignature detections are easily confounded—advocating an A/B testing approach to robustly infer life signals.

via Quanta Magazine|

#aliens #biosignatures #drake-equation

science1 month ago•12 min saved

Global rules reshape humanity's approach to first contact

The 2026 update to the International Academy of Astronautics' post-detection protocols for SETI requires independent, multi-instrument verification before any public announcement of a potential extraterrestrial signal, with data and methods opened after confirmation; it strengthens researcher safety and spectrum protection amid rising interference, calls for broad international consultation (via the UN) before any messaging to aliens, and establishes a permanent Post-Detection Sub-Committee to guide long-term societal implications, treating the framework as a living document to be presented at the 2026 International Astronautical Congress.

via The Conversation|

#extraterrestrial-life #international-cooperation #post-detection-protocols

space1 month ago•2 min saved

No Alien Signals Detected in 3I/ATLAS Scan

A team from SETI Institute and Breakthrough Listen used the Allen Telescope Array to scan 3I/ATLAS across a wide range of radio frequencies, filtering 74 million raw hits down to about 2 million candidates and then to 211 signals; none exhibited artificial signatures and all were attributed to radio-frequency interference. The result provides no evidence of alien technosignatures in this interstellar object but demonstrates that current technology can detect signals if present and supports continuing searches for technosignatures in future observations.

via Futurism|

#3iatlas #breakthrough-listen #radio-astronomy

space1 month ago•11 min saved

Arecibo Message: A 25,000-Year Beacon to the Cosmos

Broadcast in 1974, the Arecibo message was aimed at the M13 globular cluster about 25,000 light-years away and encoded 1679 bits in a 23-by-73 grid to reveal numbers, DNA components, a DNA helix, a human figure, a solar-system map with Earth highlighted, and the transmitter dish. Designed as a demonstration rather than a dialogue, its earliest possible reply would not reach Earth for roughly 25,000 years, with any response arriving no sooner than about 52,000 CE.

via Space Daily|

#arecibo #astronomy #communication

science4 months ago•3 min saved

Stormy Space Weather Could Hide Alien Signals, SETI Finds

SETI researchers warn that solar storms and plasma turbulence around stars can broaden and weaken ultra-narrow radio signals from potential alien transmitters, making them harder to detect with traditional searches and prompting researchers to rethink observation strategies, including higher-frequency surveys; the finding explains, in part, why technosignature signals remain elusive while suggesting aliens might still be out there.

via The Guardian|

#astrophysics #extraterrestrial-life #radio-astronomy

science6 months ago•3 min saved

Scientists Investigate 3I/ATLAS for Alien Signals and Space Phenomena

Scientists have scanned the interstellar object 3I/ATLAS for alien signals using the Green Bank Telescope but found no evidence of artificial radio emissions, supporting the idea that it is a natural comet. Despite ongoing investigations and some anomalies noted by Avi Loeb, current data suggest 3I/ATLAS is likely a natural icy body rather than an alien probe.

via Futurism|

#3iatlas #alien-signals #breakthrough-listen

science8 months ago•16 min saved

New Theories Suggest Aliens Are Silent, Invisible, and Possibly Beyond Our Reach

Recent research suggests that advanced civilizations could reside near the galactic core, utilizing black holes for time dilation to expand their lifespan and exploration capabilities, which may explain why we haven't detected them and offers new avenues for SETI efforts.

via Universe Today|

#black-holes #extraterrestrial-civilizations #fermi-paradox

science9 months ago•7 min saved

High Radio Emission Galaxies May Host Advanced Civilizations

Scientists suggest that galaxies with high radio emissions could harbor advanced civilizations, but such galaxy-spanning ETIs are extremely rare, with less than 1 in 100,000 large galaxies potentially hosting them. The research uses models to set upper limits on the prevalence of these civilizations based on radio observations, and proposes expanding searches to other frequencies and technosignatures beyond radio waves.

via Universe Today|

#extraterrestrial-civilizations #galaxies #radio-emissions

science1 year ago•3 min saved

Ukraine's Space Agency Sends Message to Gliese 581c, Arrival Expected in 2029

In 2008, Earth sent a message to the exoplanet Gliese 581c, which is about 21 light-years away, and the message is expected to arrive in 2029. The message included images of celebrities and Earthlings, with the hope of making contact if extraterrestrial life exists. The earliest possible reply could be in 2050, but the likelihood remains uncertain, making it a fascinating but speculative endeavor.

via IFLScience|

#astrobiology #exoplanet #gliese-581c

science1 year ago•4 min saved

Humpback Whales' Bubble Ring Communication Mysteries Unveiled

Scientists have discovered that humpback whales create smoke ring-like bubbles as a playful and possibly communicative gesture towards humans, which could provide insights into how extraterrestrial civilizations might attempt contact, supporting the idea that intelligent non-human species use curiosity and friendly interactions to communicate.

via Daily Mail|

#bubble-rings #communication #extraterrestrial-life

science1 year ago•5 min saved

Scientists Discover Humpback Whales Using Bubble Rings to Communicate with Humans

Scientists have observed humpback whales creating symmetrical bubble rings during peaceful encounters with humans, suggesting a possible form of communication or playful interaction, which may offer insights into non-verbal intelligence and interspecies signaling.

via ZME Science|

#bubble-rings #communication #humpback-whales

science1 year ago•3 min saved

Scientists Find Evidence of Possible Non-Human Communication in Oceanic Whales

Researchers from the SETI Institute and UC Davis have observed humpback whales creating bubble rings in a manner that may indicate intentional communication, potentially offering insights into non-human intelligence and serving as a terrestrial analog for understanding extraterrestrial communication.

via The Daily Galaxy|

#bubble-rings #interstellar-intelligence #marine-biology

science1 year ago•3 min saved

SETI's Breakthrough with Cosmic Lighthouses from a Ruined Observatory

Using data from the now-collapsed Arecibo radio telescope, SETI scientists have studied how pulsar signals are distorted by the interstellar medium, revealing that current models of the universe may need revision. This research, led by Sofia Sheikh, highlights the importance of archived data and its role in understanding cosmic phenomena like gravitational waves. The findings suggest that galactic structures, such as the Milky Way's spiral arms, influence these distortions, which could refine gravitational wave detection methods.

via Livescience.com|

#arecibo-observatory #gravitational-waves #interstellar-medium

science1 year ago•3 min saved

SETI Analyzes Pulsar Signals Using Arecibo's Legacy Data

Scientists from the SETI Institute have used archival data from the now-collapsed Arecibo Observatory to study how signals from pulsars, rapidly spinning neutron stars, are distorted as they travel through space. The research focused on diffractive interstellar scintillation (DISS), revealing that pulsar signal bandwidths are wider than current models suggest, indicating a need to revise models of the interstellar medium. This study highlights the ongoing scientific value of Arecibo's data, even after its destruction, in understanding galactic structures and phenomena like gravitational waves.

via Space.com|

#arecibo-observatory #interstellar-medium #pulsars

science-and-technology1 year ago•3 min saved

AI Breakthrough Facilitates Human-Whale Conversations in 20 Minutes

Researchers from the University of California Davis, led by Dr. Brenda McCowan, have achieved a groundbreaking 20-minute dialogue with a humpback whale named Twain using AI and advanced underwater technology. This interaction, part of the Whale-SETI project, highlights the potential for interspecies communication and has implications for the search for extraterrestrial intelligence. The project employs AI to analyze whale vocalizations, aiming to understand complex communication systems and draw parallels with potential extraterrestrial signals, supported by the Templeton Foundation Diverse Intelligences Program.

via The Daily Galaxy --Great Discoveries Channel|

#ai #communication #marine-biology