Others are larger than some planets, like the moon Titan, nearly half the size of Earth. If you’re looking for life beyond the solar system, there’s strength in numbers. Here's a list of 10 of the planets we know of that are most likely to host alien life, according to the University of Puerto Rico at Arecibo. As of April 2014, the Habitable Exoplanets Catalog lists 21 planets that have the best chance for life beyond our solar system. Astronomers have revealed that Kepler-452 b is the most similar planet to our own ever found with a ‘substantial opportunity’ for life. At just 20 light-years away from the sun, Gliese 581d is essentially in Earth's backyard. Researchers think that both 62e and 62f, are “water worlds” — warm places mostly or completely covered by liquid water. It is about seven times more massive than Earth, orbits a red dwarf star, and is a sister planet to the also-potentially-habitable Gliese 581g. However, scientists also believe it could be rocky with liquid water. As their names suggest, these Kepler-62 planets are some other worlds that were discovered by NASA’s Kepler Space Telescope. Our image of the day, Best telescopes for beginners 2021: Recommended from Celestron, Orion, Sky-Watcher and more, NASA will fire up its SLS moon megarocket in final 'green run' test this month, On This Day in Space! Gliese 581d is another one of our galactic neighbors (in the grand scheme of things, it is basically just around the corner). However, its days may already be numbered.This exoplanet orbits a somewhat larger, brighter and older star around the same distance Earth does to our own and it completes one orbit every 385 days – only 20 days longer than the Earth. Nutrients are required to build and maintain life. The planet is seven times the mass of Earth, which could make it a very large rocky planet or a dwarf gas giant. How soon that can happen depends on two unknowns: the prevalence of life in the galaxy and how lucky we get as we take those first, tentative, exploratory steps. There was a problem. A new analysis of data from the Kepler space telescope and the European Space Agency estimates that at least 300 million exoplanets in the Milky Way could support life. But its icy moons – especially Europa – have potential. Get breaking space news and the latest updates on rocket launches, skywatching events and more! And if you have a news tip, correction or comment, let us know at: community@space.com. Gliese 163c whirls around its dim planet star every 26 days, at a distance of 50 light-years away from Earth. Personally, if we were going to try and make our way to any planet that might be habitable, I think I would make an argument for either Gliese 667C f or Gliese 667C e. That’s because these woulds would offer an amazing view. The image shows the shadow of a human like figure who was working on a space craft. The ultimate goal of NASA's exoplanet program is to find unmistakable signs of current life on a planet beyond Earth. This data contained a staggering 700 newly confirmed exoplanets (keep in mind, just 20 years ago, we didn’t know of any planets in other solar systems, so 700 in one go is quite staggering). (1) Image of a workman on Mars. Please deactivate your ad blocker in order to see our subscription offer. 67f has an orbit of some 267 Earth-days. Kepler-186f is the first truly Earth-size exoplanet ever found in its host star's habitable zone. One of the most likely candidates for life as we know it is Kepler 186f. Thank you for signing up to Space. The next value fc is the percentage of these intelligent life planets having the capability of interstellar communication. Our universe is a terribly large place. It extends some 92 to 93 billion light-years end to end. If other planets can support life chemically as we know it here on earth, how does this relate to the origin of life itself? Identifying Planets with Life Telescope technology is advancing quickly, as larger and larger instruments are getting built. It lives about 35 light-years away from Earth's sun, in the constellation Vela (the Sail). HD 85512b was announced in 2011 as part of a treasure trove of 50 planets discovered by the High Accuracy Radial velocity Planet Searcher instrument, or HARPS, in Chile. Traci Watson. The star is an M-class dwarf star that is about a third of the mass of Earth's sun. NY 10036. Behold this actual in-game footage. Play In Browser! [/caption] For centuries, men have pondered the possibility of life on other planets and tried to prove its existence. This is just the observable universe. Ultimately, there is a grand portion of the cosmos that we can’t see. This is the closest planet yet that could support life beyond our solar system. Exoplanet Exploration Program NASA's science, technology and mission management office for the exploration of exoplanets. They wander though space about 1,200 light-years from Earth in the constellation Lyra. Here's a list of 10 of the planets we know of that are most likely to host alien life, according to the University of Puerto Rico at Arecibo. In fact, this is a planet that (if we could get there) we might be able to colonize with relative ease. As a result, its planets are thought to be the closest comfortable locations for any possible alien life. TRAPPIST-1 is at least 500 million years old, but has an estimated lifespan of 10 trillion years. It is about twice the size of Earth and orbits much closer to its home star, which is over 1,700 light years from Earth. I understand and agree that registration on or use of this site constitutes agreement to its User Agreement and Privacy Policy. And the kicker? 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