Search For Life

Could Ancient Mars Have Supported Life? Water Isn't the Only Key
'Pahrump Hills' Outcrop on Mars
December 11th, 2014
The presence of liquid water is just one of many factors that researchers need to take into account when investigating the past or present habitability of Mars or any other cosmic body, researcher Pamela Conrad says.
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Alien Life Could Thrive on 'Supercritical' CO2 Instead of Water
Artist's Rendition of a Cloudy Super-Earth
November 16th, 2014
Alien life might flourish on an exotic kind of carbon dioxide, researchers say. This 'supercritical' carbon dioxide, which has features of both liquids and gases, could be key to extraterrestrial organisms much as water is to biology on Earth.
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Could Alien Life Exist Around Red Dwarf Stars? Watch Debate in Webcast Tonight
Artist's Concept of Red Dwarf Star with Alien Planet
October 16th, 2014
Experts will debate whether or not life is likely to exist on planets orbiting red dwarf stars during a live event tonight. Watch it here at
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In 'Five Billion Years of Solitude,' Author Lee Billings Searches for E.T.
'Five Billion Years of Solitude' Book
December 9th, 2014
Author Lee Billings discusses the divide among scientists in the hunt for life elsewhere in the universe, and what an alien civilization might tell us about our own future.
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Innovative 'Starshade' Tech Could Illuminate Rocky Alien Planets
1/100th-Scale Starshade
November 14th, 2014
Researchers have been testing out "starshade" technology, which could help astronomers find and characterize rocky, Earthlike alien worlds by blocking the overpowering light of their parent stars.
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Search for Mars Life Starts on Earth
Licancabur volcano
October 13th, 2014
Frigid lakes bombarded by UV radiation and boiling, acidic springs are some of the otherworldly Earth environments where scientists plan to hunt for clues to life on Mars.
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Search for Alien Life Should Target Water, Oxygen and Chlorophyll
The Earth-Sized Exoplanet Kepler-186f
September 30th, 2014
Future space telescopes hunting for signs of alien life should focus on water, oxygen and chlorophyll-like pigments, in that order, researchers said.
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What Is Life? It's a Tricky, Confusing Question
Scanning electron microscope image of a mysterious oval structure in the Nakhla Mars meteorite. Though the structure resembles a microbial cell, scientists have not claimed it's evidence of Red Planet life.
December 4th, 2014
The way we define life has consequences for the search for life on other worlds such as Mars, Jupiter's moon Europa and the Saturn satellite Enceladus.
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Ebola Outbreak May Hold Lessons for Handling Samples from Mars
CDC Ebola Garments
October 30th, 2014
Measures taken in the current Ebola outbreak may hold some clues for how to handle Martian samples brought back to Earth from the Red Planet, which could host extraterrestrial microbes.
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Would Finding Alien Life Change Religious Philosophies?
seti telescopes
October 10th, 2014
The discovery of extraterrestrial beings — be they slimy microbes or little green men — would dramatically change the way we humans view our place in the universe. But would it shatter religion? Well, that depends on what you believe.
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