Scientists have modeled a hypothetical alien life form that might exist on Titan, the largest of Saturn’s moons.
Researchers at Cornell University calculated that a methane-based lifeform containing no oxygen might theoretically exist on the orbital moon some 886 million miles away from the Sun.
Although it has an atmosphere, Titan’s frigid temperatures and methane seas would not seem to be hospitable to life as we know it. But the researchers at Cornell theorized a lifeform that could exist from the elements available there. Why Titan? It’s the only known body, other than earth, with bodies of liquid known to stably exist.
Anyone expecting an E.T.-like sentient being, though, may be disappointed: The notional “azotosome” (named for the French word for “nitrogen”) is about the size of a virus.
Photos from the Curiosity Rover’s First 2 Incredible Years on Mars
A full-circle view released by NASA on June 20, 2013, combined nearly 900 images taken by NASA's Curiosity Mars rover, generating a panorama with 1.3 billion pixels in the full-resolution version. The view is centered toward the south, with north at both ends. It shows NASA's Mars rover Curiosity at the 'Rocknest' site where the rover scooped up samples of windblown dust and sand.NASA/JPL-Caltech/MSSS/EPANASA's Mars Curiosity Rover captures a selfie to mark a full Martian year -- 687 Earth days -- spent exploring the Red Planet.NASA/JPLA detailed telephoto view from Curiosity shows Mount Sharp. The rover was expected to reach the 3.4-mile-high peak in February 2013, and the layered surface of the mountain should yield information to scientists on the planet's geological history. University of Arizona/JPL-Caltech/NASAThe Mar's Curiosity Rover's first photo of earth from the surface of Mars via TwitterNASACuriosity's tracks was taken by Navcam onboard NASA's Mars rover Curiosity, on Nov. 18 2012.University of Arizona/JPL-Caltech/NASATracks from NASA's Curiosity Mars rover on Aug. 22, 2012 on Mars. NASA said the rover moved forward 15 feet, then rotated 120 degrees before reversing 8.2 feet during its first planned movement.NASA/JPL-Caltech/MSSS/EPAThe highest point on Mount Sharp is visible from the Curiosity rover on Aug. 18, 2012. The Martian mountain rises 3.4 miles above the floor of Gale Crater. Geological deposits near the base of Mount Sharp are the destination of Curiosity's Mars mission.NASA/JPL-Caltech/MSSS/EPAThis image shows the robotic arm of NASA's Mars rover Curiosity with the first rock touched by an instrument on the arm. JPL-Caltech/NASAThis patch of windblown sand and dust downhill from a cluster of dark rocks is the "Rocknest" site, which was the location for the first use of the scoop on the arm of Curiosity.JPL-Caltech/MSSS/NASAA small bright object on the ground beside the rover at the "Rocknest" site. The rover team has assessed this object as debris from the spacecraft, possibly from the events of landing on Mars. NASANASA's Mars rover Curiosity cut a wheel scuff mark into a wind-formed ripple at the "Rocknest" site to examine the particle-size of the ripple. For scale, the width of the wheel track is about 16 inches (40 centimeters).JPL-Caltech/NASAA Martian rock illuminated by white-light LEDs is part of the first set of nighttime images taken by the Mars Hand Lens Imager camera. NASAWhen the rover landed, it sent images from one of the hazard-avoidance cameras. The image at left was taken before the camera's dust cover was removed, the image on the right was taken after. These engineering cameras are located at the rover's base, and are lower-resolution than the color images produced by the rover's mast.
University of Arizona/JPL-Caltech/NASANASA's Curiosity rover and its parachute are seen by NASA's Mars Reconnaissance Orbiter as Curiosity descends to the surface around 10:32 p.m. PDT, Aug. 5, or 1:32 a.m. EDT, Aug. 6, 2012. The rover is equipped with a nuclear-powered lab capable of vaporizing rocks and ingesting soil, measuring habitability, and whether Mars ever had an environment able to support life.University of Arizona/JPL-Caltech/NASA
