To find alien life in our universe, scientists have considered searches for optical lasers or even giant energy-harvesting structures known as Dyson spheres. Now they’re suggesting a more mundane sort of search, a hunt for air pollution in exoplanet atmospheres. Source: https://earthsky.org/space/can-pollution-help-us-find-alien-life…
Tag: Alien civilizations
Alien hunters detect mystery signal coming from the closest star system
Astronomers hunting for radio signals from alien civilizations have reportedly detected an “intriguing signal” from the direction of Proxima Centauri, the nearest star system to the sun. Source: https://www.livescience.com/proxima-centauri-mystery-radio-beam.html
Is our galaxy filled with dead civilizations ?
A new study has suggested that most alien civilizations may have already destroyed themselves. Finding evidence that we are not alone in the universe … Source: https://www.unexplained-mysteries.com/news/342113/is-our-galaxy-filled-with-dead-civilizations…
The 1st intentional radio message to space was sent via Arecibo
Iconic Arecibo telescope is now slated for decommissioning. But its multi-faceted legacy will live on. In 1974, for example, Arecibo sent earthlings’ first intentional message to the cosmos. Source: https://earthsky.org/space/this-date-in-science-first-radio-signal-beamed-to-space…
Astronomers Trace Mysterious Fast Radio Burst To Extreme, Rare Star
The first detection of a fast radio burst inside the Milky Way leads scientists back to a magnetar, partially solving a long-standing mystery. CNET reports: Sifting through a trove of radio telescope data in 2007, Duncan Lorimer, an astrophysicist at West Virginia University, spotted something unusual. Data obtained six years earlier showed a brief, energetic burst, lasting no more than 5…
How Many Alien Civilizations Are Out There? A New Galactic Survey Holds a Clue.
Here’s a good sign for alien hunters: More than 300 million worlds with similar conditions to Earth are scattered throughout the Milky Way galaxy. A new analysis [PDF] concludes that roughly half of the galaxy’s sunlike stars host rocky worlds in habitable zones where liquid water could pool or flow over the planets’ surfaces. From a report: “This is the science…
Searching for habitable exoplanets? Look for phosphorus
Scientists develop a new way to search for potentially habitable exoplanets by measuring the amount of phosphorus in their stars. Such planets should also have abundant phosphorus – necessary for life on Earth – increasing the chances for life. Source: https://earthsky.org/space/phosphorus-in-stars-and-biomarker-habitable-exoplanets…
Search for ETs among 10 million stars comes up empty
Astronomers used a radio telescope in Australia to search for artificial radio signals among 10 million stars. The search came up empty. But, they say, that’s not bad news for those hoping to find intelligent extraterrestrials. Source: https://earthsky.org/space/search-for-extraterrestrial-intelligence-10-million-stars…
How many ETs are in our galaxy? Ask the Alien Civilization Calculator
Researchers at Omni Calculator have created the Alien Civilization Calculator, a unique combination of two different methods of trying to determine how many advanced alien civilizations may exist in our galaxy. Source: https://earthsky.org/space/alien-civilization-calculator-extraterrestrial-intelligence-seti…
Calculate the number of alien civilizations in the Milky Way for yourself
In recent years, the explosive nature of exoplanet discovery (over 4,164 confirmed so far) has led to renewed interest in the timeless question: “Are we alone in the universe?” Or, as famed Italian physicist Enrico Fermi put it, “Where is everybody?” With so many planets to choose from and the rate at which our instruments and methods are improving, the search…