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Keyword: seti

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  • Astronomers find no signs of alien tech after scanning over 10 million stars

    09/08/2020 5:05:20 PM PDT · by BenLurkin · 45 replies
    CNET ^ | Sept. 7, 2020 8:36 p.m. PT | Jackson Ryan
    The study, published in Publications of the Astronomical Society of Australia on Monday, details a search for extraterrestrial intelligence (SETI) using the Murchison Widefield Array (MWA), a collection of 4096 antennas planted in the red soil of Western Australia that detects radio signals from space. "They are little spider-like antennas that sit on the ground," explains Chenoa Tremblay, co-author on the study and astrophysicist with CSIRO, an Australian government scientific research organization. Tremblay and co-author Stephen Tingay, from the International Centre for Radio Astronomy Research, used the MWA to listen out for "technosignatures," or evidence of alien technology, in a...
  • The investigation into why a cable mysteriously broke on the Arecibo Observatory has begun

    08/15/2020 9:27:04 AM PDT · by BenLurkin · 42 replies
    space.com ^ | 14 August 2020 | Hanneke Weitering
    On Monday (Aug. 10), an auxiliary cable supporting a platform that is suspended above the 1,000-foot-wide (300 meters) radio dish broke and crashed into the telescope's reflector panels, creating a gash in the dish measuring about 100 feet (30 m) long. In a news conference with reporters Friday (Aug. 14), Arecibo director Francisco Cordova said that 250 of the observatory's primary reflector dish panels were damaged, along with several support cables underneath the dish. But observatory officials have not yet fully assessed the extent of the damage or determined the cost of the repairs needed to get the 56-year-old radio...
  • Famed SETI Observatory Wrecked After Cable Breaks

    08/12/2020 2:26:31 PM PDT · by BenLurkin · 36 replies
    Gizmodo ^ | 08/12/2020 | George Dvorsky
    At Arecibo, scientists conduct all sorts of work, from atmospheric and planetary science through to radio and radar astronomy and even searches for extraterrestrial intelligence, also known as SETI. The purpose of these observations are to determine the ways in which red dwarf stars, like Barnard’s Star, affect the habitability of their planets. Méndez was also planning to embark on a SETI project to detect extraterrestrial technosignatures (i.e. evidence of alien technology), which would have leveraged both past and future observations at Arecibo. All this now appears to be on hold. Méndez’s observations aren’t time critical, but others might be,...
  • Scientists estimate the number of intelligent alien civilizations in the galaxy

    06/15/2020 6:38:28 PM PDT · by BenLurkin · 76 replies
    CNET ^ | June 15, 2020 3:53 p.m. PT | Jackson Ryan
    A new study... provides an updated estimate of the likely number of alien civilizations that could exist in the Milky Way. The analysis...starts with revising the Drake equation... "The classic method for estimating the number of intelligent civilizations relies on making guesses of values relating to life," said Westby in a press release. "Our new study simplifies these assumptions using new data, giving us a solid estimate of the number of civilizations in our Galaxy." Westby and Conselice...built a key assumption in to their estimate: Life on another planet will arise in a similar way to how it did on...
  • The new race to contact E.T.

    05/21/2020 4:46:49 PM PDT · by Kaslin · 87 replies
    Hot air.com ^ | May 21, 2020 | JAZZ SHAW
    In an article over at Space.com, Leonard David describes a new development in the efforts by humans to contact extraterrestrial life elsewhere in the galaxy. While the SETI program (Search for Extraterrestrial Intelligence) has been in operation for decades, the results thus far have been mostly disappointing. There was a brief flurry of excitement in 1977 when “the WOW signal” was received, but in later years even that one has been called into question. Now, however, there’s a new player in the game. China has constructed the largest single-dish radio telescope in the world and they are reportedly gearing up...
  • SETI@home is shutting down as they have analyzed all the data that they need. [03/31/2020]

    03/05/2020 1:33:11 PM PST · by algore · 36 replies
    BleepingComputer ^ | 03/03/2020 | Lawrence Abrams
    SETI@home is shutting down. In an announcement posted yesterday, the project stated that they will no longer send data to SETI@home clients starting on March 31st, 2020 as they have reached a "point of diminishing returns" and have analyzed all the data that they need.
  • Astronomers want public funds for intelligent life search

    02/15/2020 11:04:54 AM PST · by BenLurkin · 31 replies
    The UK's Astronomer Royal, Professor Lord Rees, is the chair of the organisation's international advisory group. He told the BBC that, given that the multi-billion pound Large Hadron Collider had not yet achieved its aim of finding sub-atomic particles beyond the current theory of physics, governments should consider modest funding of a few million pounds for Seti. "I'd feel far more confident arguing the case for Seti than for a particle accelerator," he said. "Seti searches are surely worthwhile, despite the heavy odds against success, because the stakes are so high". Nasa once funded the search for extra-terrestrial intelligence to...
  • Space Alien Research Grad Program May Soon Be A Thing

    12/02/2019 9:21:48 PM PST · by DoodleBob · 30 replies
    International Business Times ^ | November 19, 2019 | Lorraine Lorenzo
    Hold on to your hats, skeptics. The study of alien existence is about to become a real scientific field. Pennsylvania State University is gearing up to make the search for extraterrestrial intelligence (SETI) an established field of scientific study. This means that a degree in Alien Research, no matter how outlandish it might sound, is soon going to be a real thing. According to a report, the university is planning on doing this by offering courses on the search for intelligent extraterrestrial life in its course catalog. It will also conduct actual research into the subject through it’s newly-established Penn...
  • Why We’ll Have Evidence of Aliens—If They Exist—By 2035

    11/08/2019 8:07:08 PM PST · by Duke C. · 92 replies
    Nautilus ^ | 10/4/2017 | Seth Shostak
    I’m optimistic by nature—as a scientist, you have to be. But my hopeful feeling is not wishful thinking; it is firmly grounded in the logic of SETI. Half a century sounds like a long time, but the search is truly in its early days. Given the current state of SETI efforts and abilities, I feel that we’re on the cusp of learning something truly revolutionary.
  • Search for aliens poses game theory dilemma (old but interesting piece)

    10/05/2019 12:05:15 PM PDT · by DoodleBob · 87 replies
    New Scientist ^ | December 12, 2012 | Jacob Aaron
    SENDING messages into deep space could be the best way for Earthlings to find extraterrestrial intelligence, but it carries a grave risk: alerting hostile aliens to our presence. Game theory may provide a way to navigate this dilemma. So far the search for extraterrestrial intelligence (SETI) has mostly been restricted to listening for signs of technology elsewhere. Only a few attempts have been made to broadcast messages towards distant stars. Many scientists are against such “active” SETI for fear of revealing our presence. If all aliens feel the same way then no one will be broadcasting, and the chance of...
  • INCOMING Mystery object approaching us from interstellar space could be ALIEN spacecraft...

    09/19/2019 10:07:15 AM PDT · by Red Badger · 123 replies
    The Sun UK ^ | 19 Sep 2019, 16:57Updated: 19 Sep 2019, 17:11 | Harry Pettit, Senior Digital Technology and Science Reporter
    A MYSTERIOUS object hurtling towards our Solar System may be an alien spacecraft. That's the shock claim made by one space scientist, who has exclusively revealed to The Sun that our incoming visitor could be piloted by hyper-intelligent beings. Last week, scientists in Germany announced they had spotted a distant object heading in our direction. Dubbed "C/2019 Q4", the high-speed body appears to be on a path originating from another star system that will see it fire past Mars in October. Despite numerous attempts to study C/2019, scientists remain clueless as to what it is. Many speculate the distant mass...
  • No Signs of Aliens in the Closest 1,300 Stars, Hunt Funded by Russian Billionaire Reveals

    06/19/2019 9:08:03 PM PDT · by BenLurkin · 81 replies
    Live Science ^ | June 19, 2019 | Adam Mann,
    While the truth might be out there, technological aliens don't seem to be — at least not yet. New results from the most comprehensive Search for Extraterrestrial Intelligence (SETI) program ever undertaken — which surveyed 1,327 nearby stars for signals from intelligent beings — have turned up empty. "There's certainly nothing out there glaringly obvious," ... lead author of a paper about the results, which were published in The Astrophysical Journal, told Live Science. "There's no amazingly advanced civilizations trying to contact us with incredibly powerful transmitters." While the team didn't find anything this time around, Price said that there...
  • Seventh planet has a blue ring

    04/08/2006 4:03:32 PM PDT · by NYer · 36 replies · 844+ views
    BBC ^ | April 7, 2006 | Helen Briggs
    Astronomers have discovered that the planet Uranus has a blue ring - only the second found in the Solar System. Like the blue ring of Saturn, it probably owes its existence to an accompanying small moon. Scientists suspect subtle forces acting on dust in the rings allow smaller particles to persist while larger ones are recaptured by the moon. Smaller particles reflect blue light, giving the ring its distinctive colour, the US team reports in Science. All other rings - those around Jupiter, Saturn, Uranus and Neptune - are made up of both large and small particles, making the...
  • A Neutrino Beam Beacon

    05/18/2019 10:48:40 AM PDT · by LibWhacker · 11 replies
    Centauri Dreams ^ | 5/17/19 | Paul Gilster
    A Neutrino Beam Beaconby Paul Gilsteron May 17, 2019 If you want to look for possible artifacts of advanced civilizations, as do those practicing what is now being called Dysonian SETI, then it pays to listen to the father of the field. My friend Al Jackson has done so and offers a Dyson quote to lead off his new paper: “So the first rule of my game is: think of the biggest possible artificial activities with limits set only by the laws of physics and look for those.” Dyson wrote that in a 1966 paper that repays study today (citation...
  • Alien Hunters, Stop Using the Drake Equation

    12/29/2018 3:45:29 PM PST · by BenLurkin · 57 replies
    space.com ^ | December 27, 2018 08:00am ET | Paul Sutter, Astrophysicist
    For the precocious hunter of off-Earth life, the Drake equation is the ever-ready, go-to toolkit for estimating just how (not) lonely humans are in the Milky Way galaxy. The equation was developed by astronomer Frank Drake in 1961 in a slight hurry so that attendees of an upcoming conference would have something to confer about, and it breaks down the daunting question "Are we alone?" into more manageable, bite-size chunks. The equation starts with some straightforward concepts, such as the rate of star formation and the fraction of stars hosting planets. But it quickly moves into tricky terrain, asking for...
  • SETI Astronomers Find No Evidence for Artificial Transmitters on Oumuamua

    12/09/2018 9:53:48 AM PST · by ETL · 36 replies
    Sci-News.com ^ | Dec 7, 2018 | News Staff / Source
    Following its discovery in October 2017, ‘Oumuamua was the subject of popular speculation about a possible non-natural origin. Its highly elongated shape and the fact that no coma was observed strengthened this hypothesis for some, as these are uncharacteristic of asteroids and comets.A recent paper by Harvard Smithsonian Center for Astrophysics researchers Dr. Shmuel Bialy and Professor Abraham Loeb has also suggested the possibility that ‘Oumuamua is a deliberate construction.The scientists argued that the slight, unexpected acceleration observed for this object could be caused by pressure from sunlight as ‘Oumumua swung around the Sun. Their hypothesis is that the object...
  • Aliens may have existed in our solar system long before us

    04/29/2017 8:37:15 AM PDT · by BenLurkin · 83 replies
    nypost.com ^ | Jasper Hamill, The Sun
    “A prior indigenous technological species might have arisen on ancient Earth or another body, such as a pre-greenhouse Venus or a wet Mars,” he wrote. ... Earth’s plate tectonics would effectively have “erased” the traces of a civilization that lived billions of years ago. Venus is in the grip of a severe greenhouse effect and also undergoes similar “resurfacing” that would scour it clean of artifacts. This leaves just a handful of places where archaeologists might find traces of a lost extraterrestrial civilization. “Remaining indigenous technosignatures might be expected to be extremely old, limiting the places they might still be...
  • Discovery of peculiar periodic spectral modulations in a small fraction of solar type stars

    10/24/2016 7:23:59 PM PDT · by JimSEA · 40 replies
    Cornell University Library ^ | 10/10/2016 | E.F. Borra
    A Fourier transform analysis of 2.5 million spectra in the Sloan Digital Sky Survey was carried out to detect periodic spectral modulations. Signals having the same period were found in only 234 stars overwhelmingly in the F2 to K1 spectral range. The signals cannot be caused by instrumental or data analysis effects because they are present in only a very small fraction of stars within a narrow spectral range and because signal to noise ratio considerations predict that the signal should mostly be detected in the brightest objects, while this is not the case. We consider several possibilities, such as...
  • Are the Laws of the Universe Fine-Tuned for Life?

    11/15/2018 5:19:25 AM PST · by Heartlander · 73 replies
    Discover ^ | November 12, 2018 | Korey Haynes
    Are the Laws of the Universe Fine-Tuned for Life? By Korey Haynes | November 12, 2018 Humans have often looked at the night sky and wondered if there’s anyone else out there. But stare into that darkness long enough, and many wonder instead: how did we get here? What were the odds, in a universe so enormous and chaotic, that humans should have come to exist at all? Is life, let alone intelligent life, such a wildly improbable occurrence that we’re the only ones here? Or are we an inevitable consequence of the laws of physics?Life exists on Earth (assuming...
  • Researchers track 72 unusual radio bursts from outer space

    09/15/2018 4:49:53 AM PDT · by BenLurkin · 37 replies
    NwesRep ^ | 09/14/2018 | Alex Hollings
    As recently as two years ago, SETI began picking up a different kind of signal — one that scientists can’t explain but believe that it isn’t born out of an attempt to communicate: fast radio bursts (FRBs). These FRBs are massively powerful; so powerful, in fact, that the leading natural explanation scientists can come up with is that they’re from “highly magnetized neutron stars, blasted by gas streams near to a supermassive black hole.” The problem with that explanation is that the bursts aren’t all coming from one specific place, but they are all coming from one specific region of...