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News
A Breakthrough Listen survey was thought to have covered about 288,000 stars catalogued by Gaia. But a new simulation of the Milky Way estimates that more than 6.18 million stars actually fell within its radio-telescope beams—millions of potential worlds too faint or distant for Gaia to catalogue reliably, yet still within range if they were transmitting strongly enough.
11+ hour, 26+ min ago (1228+ words) A Besançon Galaxy Model reanalysis expands Breakthrough Listen's stellar bycatch to 6,182,364 simulated objects, while strong transmitter limits remain conditional on distance, power and duty cycle....
Frozen object beyond Jupiter is transforming into a comet
1+ day, 13+ hour ago (1029+ words) A frozen object beyond Jupiter is venting carbon dioxide gas into space, revealing what can drive activity so far from the sun. A centaur, one of the icy bodies that orbit beyond Jupiter, has started venting gas into space, even…...
Space Entrepreneur Wants To Prove There Are Aliens By Sending A Probe On An 80,000-Year Voyage To Alpha Centauri Because AI Said That Would Work
2+ day, 10+ hour ago (419+ words) Jalopnik Space Entrepreneur Wants To Prove There Are Aliens By Sending A Probe On An 80,000-Year Voyage To Alpha Centauri Because AI Said That Would Work Let's pretend that you want to figure out why alien civilizations have not yet…...
ALMA Finds Interstellar Comet 3I/ATLAS Loaded With Methanol
2+ day, 21+ hour ago (137+ words) The ALMA radio telescope in Chile has measured an unusually high methanol content in the coma of interstellar comet 3I/ATLAS, among the highest ever recorded in any comet. The ratio of methanol to hydrogen cyanide came out at roughly 70 on…...
Astronomer Theorise That Extraterrestrial Megacomputers Could Soon Reveal Hidden Alien Civilisations
2+ day, 18+ hour ago (541+ words) The idea begins with a simple premise about civilisation itself. Computers have become steadily more powerful and central to human life, and the paper asks whether advanced extraterrestrial societies might also push computation towards its most efficient possible form, making…...
The Golden Record: When humanity sent a message specifically for aliens
2+ day, 18+ hour ago (345+ words) NASA knew that the paths the Voyager twins were on would take them out of the solar system, and they thought it would be unwise not to put evidence of our existence out there. Thus came the idea of the…...
New Revelations About the Origin of Interstellar Comet 3I/ATLAS
3+ day, 3+ hour ago (28+ words) UK astronomers have uncovered new clues about the origin of 3I/Atlas – only the third known object from beyond our Solar System ever spotted in our cosmic neighbourhood....
Near Jupiter's orbit, astronomers catch a frozen silent body slowly awakening into a comet while shedding carbon dioxide gas and growing a halo of crystalline ice for the very first time in recorded science
3+ day, 8+ hour ago (533+ words) Near Jupiter’s orbit, a frozen body is waking up into a comet Three billion miles from Earth, in the cold darkness beyond Jupiter’s orbit, a small icy body that has drifted in near-silence for billions of years is beginning to…...
UK astronomers find: Interstellar comet 3I/ATLAS formed in extreme cold
3+ day, 4+ hour ago (454+ words) UK astronomers have uncovered new clues about the origins of 3I/ATLAS, only the third confirmed interstellar object ever detected, finding that the comet likely formed in an exceptionally cold environment far from its parent star. The findings, published in Monthly…...
Interstellar Comet 3I/ATLAS Reveals Secrets From A Frozen World Beyond Our Solar System
3+ day, 12+ hour ago (643+ words) Astronomers have uncovered new evidence about the frozen birthplace of interstellar comet 3I/ATLAS. The results indicate that the object likely developed in temperatures below -240°C (-400°F), suggesting a birthplace located in the distant frozen outskirts of another star system. Such…...