Search For Life

The Father of SETI: Q&A with Astronomer Frank Drake
Arecibo Radio Observatory
February 26th, 2015
An interview with Frank Drake, who conducted the first search for extraterrestrial intelligence (SETI) experiment in 1960 and came up with a famous equation that estimates the possible number of alien civilizations.
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NASA Europa Mission May Search for Signs of Alien Life
This view of Europa is based on information from NASA's Galileo mission of the 1990s. This new, remastered version, released in 2014, features more realistic colors, showing how the Jupiter moon would look like to the human eye.
February 20th, 2015
NASA officials have asked scientists to consider ways that a Europa mission could search for evidence of alien life in the plumes of water vapor that apparently blast into space from Europa's south polar region.
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How Did Multicellular Life Evolve?
Fossil of a 600 Million-Year-Old Multicellular Organism
February 11th, 2015
Scientists are discovering ways in which single cells might have evolved traits that entrenched them into group behavior, paving the way for multicellular life.
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'Rotisserie' Planets Could Host Alien Life — If Wet Enough
Scientists now think that planets spinning on their sides might be more habitable than previously expected if they harbor oceans.
February 25th, 2015
Planets spinning on their sides were long thought to have climates too extreme for life as it is known on Earth, but now scientists find that these "rotisserie" worlds might be more hospitable.
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Planets Orbiting Red Dwarfs May Stay Wet Enough for Life
Red Dwarf Depiction
February 17th, 2015
Small, cold stars known as red dwarfs are the most common type of star in the Universe, and the sheer number of planets that may exist around them potentially make them valuable places to hunt for signs of extraterrestrial life.
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Earth's Moon May Not Be Critical to Life
Moon Full Disk Image
February 6th, 2015
The Moon has long been viewed as a crucial component in creating an environment suitable for the evolution of complex life on Earth, but a number of scientific results in recent years have shown that perhaps our planet doesn't need the Moon as much as we
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How Did the Code Of Life Pass Through Primitive Cells?
Space radiation breaks apart DNA in this artist's conception. Scientists are interested in how information flows between DNA, RNA and proteins.
February 4th, 2015
Scientists hope to create artificial cells that closely mimic what biological ones do so that it would be easy to create laboratory conditions to test out how they evolve.
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Should Humanity Try to Contact Alien Civilizations?
Some researchers want to use big radio dishes like the 305-meter Arecibo Observatory in Puerto Rico to announce our presence to intelligent aliens.
February 24th, 2015
For more than 50 years, scientists have been scanning the heavens for signals that may have been generated by intelligent alien life. Some researchers are advocating that we beam out signals of our own designed to catch aliens' eyes as well.
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How Can We Protect Mars from Earth Germs, While Searching for Life?
Dark Streaks in Coprates Chasma
February 11th, 2015
The search for life on Mars presents us with many challenges – not the least of which is microbial contamination. How do we ensure that microbes from Earth don't hitchhike all the way to the Red Planet and spread there?
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How Would the World Change If We Found Alien Life?
Radio Telescopes and the Moon
February 6th, 2015
In 1938, Orson Welles narrated a radio broadcast of “War of the Worlds” as a series of simulated radio bulletins of what was happening in real time as Martians arrived on our home planet. The broadcast is widely remembered for creating public panic, altho
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