Search For Life

Could 'Green Rust' Be A Catalyst For Martian Life?
The Mars Curiosity Rover has found signs of ancient water on Mars.
May 26th, 2015
Green rust could help living organisms on Mars extract energy from their environment. Scientists are working on ways of identifying green rust on the surface of the Red Planet.
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Advanced Alien Civilizations Still Science Fiction — For Now
Mid-infrared Emission from the Great Galaxy in Andromeda
May 11th, 2015
A team of scientists used NASA's Wide-field Infrared Survey Explorer spacecraft to hunt for telltale heat signatures coming from 100,000 galaxies. They found no smoking guns.
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Ocean on Saturn Moon Enceladus May Have Potential Energy Source to Support Life
Illustration of Saturn Moon Enceladus’ Interior
May 7th, 2015
Chemical reactions that free up energy that could potentially support a biosphere are occurring deep within Enceladus' salty subsurface ocean, a new study suggests.
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Did Curiosity Rover Cause Mars' Mysterious Methane Spike?
Methane on Mars Rover
May 25th, 2015
A scientist has raised questions about the latest detection of methane on Mars, suggesting that NASA's rover could be responsible for the mysterious burp. Highly unlikely, but not impossible, says the Curiosity team.
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Institute for Pale Blue Dots Renamed to Honor Carl Sagan, Will Search for Alien Life
The Institute for Pale Blue Dots at Cornell University in Ithaca, New York,was renamed the Carl Sagan Institute: Pale Blue Dots and Beyond in a ceremony on May 9, 2015. The institute is dedicated to advancing the search for life in the universe.
May 9th, 2015
A science institute at Cornell University that is focused on the search for life elsewhere in the universe has been renamed the Carl Sagan Institute: Pale Blue Dots and Beyond.
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Europa's Elusive Water Plume Paints Grim Picture For Life
Artist's concept of plume above Europa
May 6th, 2015
The water plume seen on Jupiter's moon Europa in 2013 may have been a rare event, which implies the satellite may be a solid ball of ice and inhospitable to life.
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Nearby Alien Planets Not So Life-Friendly After All
Planet Candidate Tau Ceti f
April 24th, 2015
The star Tau Ceti, which lies just 11.9 light-years from Earth, is thought to host five exoplanets, two of which have been posited to be potentially habitable. But a new study throws some cold water on these worlds' life-supporting ability.
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Alien Life on Oily Exoplanets Could Have Ether-based 'DNA'
Saturn's moon Titan Hydrocarbon Seas
May 13th, 2015
Although DNA and RNA would not function in environments like that of Saturn's moon Titan, ethers could fulfill this key role.
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Life's Building Blocks Recreated in Space-Like Conditions
Artist's Concept of Alien Solar System
May 7th, 2015
Researchers have reproduced a wide array of life's building blocks in a scenario involving meteorites and the solar wind, suggesting that such chemicals may exist on many bodies in our solar system.
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In Search for Alien Life, Follow the Water
Mars’ Ancient Ocean
April 30th, 2015
The search for life beyond Earth homes in on water, whose unique properties make it critical to life as we know it and whose abundance throughout the solar system is becoming increasingly clear to scientists.
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