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News Extra Terrestiral Life
September 23, 2014
What is life? It's a Tricky, Often Confusing Question
Moffet Field CA (NASA) Sep 22, 2014
What is life? This is a question that is often asked and typically confused. The confusion starts from the several uses of the word "life" in English. There are at least three usages as exemplified by the following questions: 1) Is there life on Mars? 2) Is there life in this organism? 3) Is life worth living? The definition of "life" in these three usages is quite different. In the first case, life refers to a collective phenomenon, in the second case it refers to the ability of ... read more

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Satellite Services supplies on-board sub-systems for smallsats and microsats.
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New Study Revisits Miller-Urey Experiment at the Quantum Level
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NASA has some advice for how you can find aliens
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NASA Research Gives Guideline for Future Alien Life Search
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DNA May Have Had Humble Beginnings As Nutrient Carrier
New research intriguingly suggests that DNA, the genetic information carrier for humans and other complex life, might have had a rather humbler origin. In some microbes, a study shows, DNA pulls dou ... more
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Hot-spring bacteria reveal ability to use far-red light for photosynthesis
Bacteria that grow in environments enriched in far-red light use a previously unknown process for harvesting energy. This discovery lays the foundation for further research aimed at improving plant ... more
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How Titan's Haze Help Us Understand Life's Origins
Where did life on Earth come from? There are several theories as to what might have happened. Maybe comets came bearing organic material, or life was transported from another planet such as Mars, or ... more
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Scientists confirm array of microorganisms in buried Antarctic lake
Scientists have confirmed the presence of an array of microorganisms, including an extensive family of rock-eating bacteria, living in a subglacial lake in Antarctica. The discovery gives hope to scientists who suggest life could still be lurking deep under the surface of Mars. ... more
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Has sea plankton been discovered on the ISS outer hull
Russian scientists say they made a "unique" discovery while analyzing samples from the exterior of the International Space Station - traces of tiny sea creatures on the station's windows and walls. ... more
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Sequencing at sea
Daylight was breaking over the central Pacific and coffee brewing aboard the MY Hanse Explorer. Between sips, about a dozen scientists strategized for the day ahead. Some would don wetsuits and slip ... more
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500 million year reset for the immune system
Scientists at the Max Planck Institute of Immunobiology and Epigenetics (MPI-IE) in Freiburg re-activated expression of an ancient gene, which is not normally expressed in the mammalian immune syste ... more
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Follow the radio waves to exomoons
Scientists hunting for life beyond Earth have discovered more than 1,800 planets outside our solar system, or exoplanets, in recent years, but so far, no one has been able to confirm an exomoon. Now ... more
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Red Dwarf Stars Might Be Best Places to Discover Alien Life
Red dwarfs are the most common type of star in the universe, and nearly every one of these stars may have a planet located in its habitable zone where life has the best chance of existing, a new stu ... more
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BIOMEX: Exploring Mars in Low Earth Orbit
In their quest to understand life's potential beyond Earth, astrobiologists study how organisms might survive in numerous environments, from the surface of Mars to the ice-covered oceans of Jupiter' ... more
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Companion planets can increase old worlds' chance at life
Having a companion in old age is good for people - and, it turns out, might extend the chance for life on certain Earth-sized planets in the cosmos as well. Planets cool as they age. Over time ... more
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A New Approach to SETI: Targeting Alien Polluters
Humanity is on the threshold of being able to detect signs of alien life on other worlds. By studying exoplanet atmospheres, we can look for gases like oxygen and methane that only coexist if replen ... more
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Biomarkers of the Deep
Tucked away in the southwest corner of Spain is a unique geological site that has fascinated astrobiologists for decades. The Iberian Pyrite Belt (IPB) in Spain's Rio Tinto area is the largest known ... more
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Alien Atmospheres - Methane, CFCs and other signs of smart ETs
Sometimes we get lucky: an exoplanet many light-years away passes in front of its star at the perfect angle. This transit allows us to read certain features of that planet's atmosphere. The resultin ... more
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Seeing Earth As An Exoplanet: What Signs Of Life Are Visible?
An extraterrestrial spacecraft lurking in a satellite's orbit near Earth would be able to see city lights and pollution in our atmosphere. But what if it searched for signs of life on Earth from afa ... more
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UEA research shows oceans vital for possibility of alien life
Researchers at the University of East Anglia have made an important step in the race to discover whether other planets could develop and sustain life. New research published in the journal Astrobiol ... more
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    Are we alone? Alien pollution might reveal the answer
    Earthlings often wonder if life exists on other planets, and researchers said Wednesday that hunting for traces of pollution from distant worlds could provide the answer. ... more
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    NASA says it's close to finding alien life, Earth's twin
    At a panel discussion on the search for alien life, held this week at NASA's headquarters in Washington, the agency's top scientists said they're getting close. ... more
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    When Life Went Global
    "An origin of life is not the same as an origin of a biosphere-that's an important distinction," says David Grinspoon, a planetary scientist and curator of astrobiology for the Denver Museum of Natu ... more
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    Two 'Goldilocks planets' that might support life are proven false
    Mysteries about controversial signals coming from a dwarf star considered to be a prime target in the search for extraterrestrial life now have been solved in research led by scientists at Penn Stat ... more
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    Would Earth Look Like A Habitable Planet From Afar?
    Even when a distant world has the trademarks of habitability - it's Earth-sized, it's in the zone around its star where liquid water is possible - finding signs of life is tricky. The telescope tech ... more
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    Ancient Worlds Could Be Kept 'Alive' by Gravitational Nudges
    For more than three billion years now, Earth's ability to support life has been a delicate balancing act. Climatic periods of severe cold or hot have brought life to its knees. Glaciers covered the ... more
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    Cosmic Impacts May Help Create Suitable Habitat for Life
    Cosmic impacts are known to trigger mass extinctions on Earth. However, a new study adds to evidence that asteroid and cometary bombardment can also shelter life by generating pores in rocks that sh ... more
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    Hunt for extraterrestrial life gets massive methane boost
    A powerful new model to detect life on planets outside of our solar system, more accurately than ever before, has been developed by UCL (University College London) researchers. The new model focuses ... more
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