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Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty
Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty "The results from 3I/ATLAS show how realistic it is to detect a signal with the technology we have today." Sorry, true believers: It appears the interstellar comet 3I/ATLAS is indeed just a comet. Radio astronomers recently hunted for "technosignatures" coming from 3I/ATLAS, which is just the third confirmed interstellar object ever seen in our solar system.
How should we handle alien detection in a world of AI, deepfakes and social media? This committee is writing the rulebook
How should we handle alien detection in a world of AI, deepfakes and social media? This committee is writing the rulebook If and when SETI discovers alien life, then a revised Declaration of Principles guarantees that once the discovery has been verified, its disclosure will come soon thereafter. The International Academy of Astronautics (IAA) has ratified protocols advising what an astronomer should do if they discover evidence for extraterrestrial intelligence in our modern global world of...
Alien signal claims face stricter verification under updated disclosure rules
Alien signal claims face stricter verification under updated disclosure rules Sadie Harley Scientific Editor Robert Egan Associate Editor The IAA SETI Committee has updated rules for evaluating and revealing the detection of extraterrestrial intelligence. A University of Manchester astronomer has led a major international overhaul of the rules that would govern how scientists announce evidence of extraterrestrial intelligence to the world.
Our latest interstellar visitor has no signs of alien technology, scientists say
Our latest interstellar visitor has no signs of alien technology, scientists say There were no ‘technosignatures’ from comet 3I/ATLAS, the third known object from a faraway star The group leading the charge in the search for extraterrestrial life has given the all-clear: an interstellar comet looks to be completely natural and free of any alien tech. The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of otherworldly technology...
Some Thoughts on the Future of Technosignature Searches: Constraining the Fermi Paradox
arXiv:2606.00463v1 Announce Type: cross Abstract: This paper examines how future technosignature searches may constrain competing resolutions of the Fermi Paradox, with particular attention to the possibility that technologically capable entities (TCEs) are either intrinsically rare or deliberately concealed. I propose a multi-pronged observational strategy comprising expanded radio and optical SETI, spectroscopic searches for biosignatures and technosignatures in exoplanet atmospheres,...
Some Thoughts on the Future of Technosignature Searches: Constraining the Fermi Paradox
Announce Type: replace-cross Abstract: This paper examines how future technosignature searches may constrain competing resolutions of the Fermi Paradox, with particular attention to the possibility that technologically capable entities (TCEs) are either intrinsically rare or deliberately concealed. I propose a multi-pronged observational strategy comprising expanded radio and optical SETI, spectroscopic searches for biosignatures and technosignatures in exoplanet atmospheres, astronomical...
Interstellar object 3I/ATLAS reveals no technosignatures in seven-hour radio scan
Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object observed in our solar system. Using the Allen Telescope Array (ATA) at the Hat Creek Radio Observatory in Northern California, the team scanned a wide range of radio frequencies for signs of extraterrestrial technology and found none, as expected based on other astronomical observations showing that the object exhibits natural comet-like composition and behavior. The...
'The Arrival' at 30: Charlie Sheen’s criminally underrated alien invasion thriller feels much scarier today
'The Arrival' at 30: Charlie Sheen’s criminally underrated alien invasion thriller feels much scarier today The science fiction film trope of the passionate astronomer monitoring radio telescopes in search of transmissions from an extraterrestrial intelligence, then actually hearing one, seems cliché today after decades of overuse. Surprisingly, its origins actually aren’t that old. It can be traced to 1996’s "The Arrival," which happens to be marking its 30th anniversary today.
How the electromagnetic spectrum opened our eyes to the universe
The following is an extract from our Lost in Space-Time newsletter. Each month, we dive into fascinating ideas from around the universe. You can sign up for Lost in Space-Time here.
Watch this bio-inspired Mars rover concept 'swim' through sand on curved wheels (video)
Watch this bio-inspired Mars rover concept 'swim' through sand on curved wheels (video) The sandfish locomotion idea has been adopted from Scincus scincus, a lizard found in the Sahara desert. A novel approach to scouting the sand dunes of Mars is the Valles Marineris Explorer - or VaMEx.