Calculations show the Universe should be teeming with life, yet we have not yet made contact with alien beings. These facts have led to the Fermi Paradox, which simply asks why we have not yet contacted life on other worlds. Some of the top researchers in the world gathered in Paris on March 18 to discuss possible answers to this paradox. One group, called Messaging Extraterrestrial Intelligence, or METI, believes we may need to send information out to other worlds via radio telescopes, as a means of inviting communication.Read More Where are the Aliens? Answering the Fermi Paradox
Binary stars may be more likely to harbor life than once believed. Astronomers thought, until now, that life was unlikely to form in systems containing two or more stars. However, a new computer model developed by an undergraduate student of astronomy shows that as binary stars form in stellar nurseries, they are often passed by a third sun. Gravity from this passer-by can draw the two binary stars closer together, increasing the amount of area warm enough for liquid water to pool on planets. Water is necessary for life on Earth to exist, and planets with water are thought to be more likely to harbor life.Read More Binary Stars May be Likely to Harbor Life, After All
Astronomers at the SETI Institute are estimating that the human race will likely make contact with an alien species sometime in the next 25 years. Science writer James Maynard released a new look on thecosmiccompanion.com seeing what aliens may look like, based on the laws of science and evolution. Such aliens, he finds, are likely to have legs and some form of two or more eyes, and have a kind communication. Other than those features, extraterrestrials may have little in common with life on Earth.Read More Preparing for E.T. – What do Aliens Look Like?
A newly discovered super-Earth, Barnard b, may be capable of supporting alien life, researchers at Villanova University report. This world is roughly three times larger than the Earth, and experiences frigid temperatures. However, if it is a rocky world with a molten core, like Earth and Venus, this could provide enough heat to create oceans of liquid water that could support life. Astronomers are still uncertain if Bernard b has a solid surface, or if it is a gaseous world, similar to Uranus and Neptune. The next generation of telescopes may be able to make that determination, and possibly detect life if it exists on that alien world.Read More Could Alien Life Exist on Barnard b? It’s Possible!
A new exoplanet orbiting Bernard’s Star, just six light years from Earth, has been detected by astronomers. This frozen world orbits the cool red dwarf star at about the same distance as that which separates the Sun and Mercury. Life is unlikely to be found on the frigid surface, but the techniques used to discovery this world could allow astronomers to find a treasure trove of other worlds orbiting alien stars.Read More Howdy Neighbor! Frozen Super-Earth Discovered Orbiting Bernard’s Star
Liquid water has been found on Mars for the first time. The underground lake is 20 kilometers in diameter, and lies 1.5 kilometers beneath the south pole of the Red Planet. This finding greatly increases the chance of finding primitive life on Mars, although complex life is unlikely to be found there, due to the harsh conditions.Read More Eureka! Liquid Water Discovered on Mars!
One of the nearest extra-solar planets to Earth, Proxima B, has recently fallen out of favor as a potential home to alien life. Maybe it’s not time to count it out just yet.Read More Extraterrestrial Life May Feel at Home on Proxima B After All
The idea of life on Venus has fallen out of favor in recent decades. But, maybe it’s time to start looking for life on this world after all…Read More Is Venus the Hottest New Spot to Search for Extraterrestrial Life?
Microbes thrive under conditions like those seen on Saturn’s ocean moon of Enceladus. What does this mean for the search for extraterrestrial life?Read More Microbes Could be Right at Home on Saturn’s Moon Enceladus
Michio Kaku answered questions about the nature of alien life during an AMA. Here are the three likelihoods he postulated, as well as a couple of our own.Read More Is Michio Kaku Right About Aliens, and What Does that Mean for First Contact?