Search For Life

They Want to Believe: UFO Hunters Plan Database to Track Sightings
Object Seen in April 2013
January 25th, 2015
A new investigative organization has just kick-started the creation of a worldwide UFO database, which will allow people around the globe to report their supposed extraterrestrial encounters.
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Barren Deserts Can Host Complex Ecosystems
Biological Soil Crust in Hovenweep National Monument
January 13th, 2015
Hundreds of organisms, ranging from bacteria to lichens, can band together to create biological soil crusts in order to survive in tough conditions.
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No Alien Signals Detected From Kepler's New Exoplanet
Super-Earth HIP 116454b
January 8th, 2015
After pointing the Allen Telescope Array at a newly-found exoplanet discovered by NASA's Kepler space telescope, SETI reports there is no transmitting alien civilization. But the search continues.
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How Did Life Become Complex, and Could It Happen Beyond Earth?
International Space Station Over Earth
January 20th, 2015
When astrobiologists contemplate life on nearby planets or moons, they often suggest such life would be simple. Instead of there being some kind of multicellular organism on, say, Jupiter's moon Europa, scientists instead aim to find something more like a
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Scientists Observe Solar System Planets Like Alien Worlds
Many Moons Graphic
January 11th, 2015
Getting a handle on what rocky worlds in our solar system would look like from afar will give us a basis for comparison as we seek out distant, habitable exoplanets.
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Search for the First True Alien Earth Heats Up
Artist's concept of Kepler-186f, the first Earth-size planet found orbiting in the habitable zone of its parent star. The exoplanet circles a red dwarf about 490 light-years from Earth.
January 7th, 2015
Newly announced discoveries by NASA's Kepler space telescope suggest that the first true alien Earth may not elude planet hunters for much longer.
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How NASA's Next Mars Rover Will Hunt for Signs of Past Life
A diagram of the seven instruments expected to fly on NASA's 2020 Mars rover.
January 2nd, 2015
How habitable was Mars in the past, and does it have signs of life? This is part of what Mars 2020, a successor to Curiosity, will examine when it arrives on Mars.
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Cosmic Impacts May Have Seeded Early Earth with Ingredients for Life
Gun Used in Cosmic Impacts Study
January 20th, 2015
A new study shows that organic compounds carried in icy bodies can survive high-speed impacts and transfer to a target.
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Mars Microbe Traces Spotted by Rover? Probably Not, Curiosity Team Says
Mars' Gillespie Lake outcrop on Mars — shown here in a photo taken by NASA's Curiosity rover — shows possible signs of ancient microbially induced sedimentary structures, according to a recent study. But Curiosity scientists say the features likely result
January 9th, 2015
Intriguing features photographed by NASA's Mars rover Curiosity probably don't have a biological origin, mission team members say.
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Do Mars Rover Photos Show Potential Signs of Ancient Life?
Gillespie Lake Outcrop on Mars
January 7th, 2015
A careful study of images taken by the NASA rover Curiosity has revealed intriguing similarities between ancient sedimentary rocks on Mars and structures shaped by microbes on Earth. The findings suggest, but do not prove, that life may have existed ear
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