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…
Tag: earth-like
Cool! Here’s how Venus would look as a water world
A new map created by a Reddit user – based on what we know about the highs and lows on Venus’ surface – shows what this neighboring, cloud-shrouded, blazing hot planet might look like with oceans. Wow! Source: https://earthsky.org/space/venus-map-with-oceans-on-surface-terraforming…
Gas reaches young stars along magnetic field lines
Astronomers have used the GRAVITY instrument to study the immediate vicinity of a young star in more detail than ever before. Their observations confirm a thirty-year-old theory about the growth of young stars: the magnetic field produced by the star itself directs material from a surrounding accretion disk of gas and dust onto its surface. The results, published today in the…
Surprising number of exoplanets could host life
Earth. A new study shows other stars could have as many as seven Earth-like planets in the absence of a gas giant like Jupiter. Source: https://phys.org/news/2020-07-exoplanets-host-life.html…
1st direct image of 2 giant exoplanets orbiting a sunlike star
For the 1st time ever, astronomers have photographed more than one giant exoplanet orbiting a sunlike star. The planetary system is similar to our solar system, but younger. Source: https://earthsky.org/space/1st-photos-gas-giant-exoplanets-tyc-8998-760-1…
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…
At least 2 super-Earths orbit this red dwarf star
Astronomers from the University of Göttingen in Germany have discovered two, and possibly three, super-Earth exoplanets orbiting the nearby red dwarf star Gliese-887. Source: https://earthsky.org/space/exoplanets-super-earths-gliese-887-red-dwarf-star…
How dust could make some exoplanets more habitable
A new study from scientists in the UK suggests that atmospheric dust could increase the habitability of some exoplanets, especially those orbiting red dwarf stars. Source: https://earthsky.org/space/how-dust-could-make-some-exoplanets-more-habitable…
New Exotica Catalog will help guide search for ET
“What if extraterrestrial intelligences are not like us, but are found in the frigid reaches of the outer solar system, the extreme gravity of neutron stars, the brilliant cores of active galaxies, or the hearts of the richest galaxy clusters?” Source: https://earthsky.org/space/the-breakthrough-listen-exotic-target-catalog-seti-extraterrestrial-intelligence…
Scientists Say Most Likely Number of Contactable Alien Civilizations Is 36
An anonymous reader quotes a report from The Guardian: They may not be little green men. They may not arrive in a vast spaceship. But according to new calculations there could be more than 30 intelligent civilizations in our galaxy today capable of communicating with others. In 1961 the astronomer Frank Drake proposed what became known as the Drake equation, setting…