“Earth’s Unseen Universe” –A Hidden World of Microbial Dark Matter

 

Scientists believe that as many as a quarter of the microbes on earth could come from the roughly 30 phyla–a classification between kingdoms and classes–of microbes that have never been grown in a lab culture and could be dominating nearly all the environments on Earth except for the human body. “All vertebrates, every single animal with a spine, are contained within a single phylum. So this means that we potentially have 30 different types of microbes that are each as different from any already known microbe as giraffes are from starfish.”

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Alien Water Worlds –“Astronomers Ask Could Complex Life Evolve There?”

 

Think of beautiful blue planets with endless oceans orbiting many of the Milky Way’s one trillion stars. Could they support life? Perhaps even intelligent life? “There may be life there,” says Lisa Kaltenegger of the Max Planck Institute for Astronomy and the Harvard-Smithsonian Center for Astrophysics. “But could it be technology-based like ours? Life on these worlds would be under water with no easy access to metals, to electricity, or fire for metallurgy. Maybe life’s inventiveness to get to a technology stage will surprise us.”

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“Sentinel Species of the 6th Mass Extinction” –Marine Mammals May Not Survive the Anthropocene

 

 

“Marine mammals, such as manatees or bottlenose dolphins, are sentinel species—the canary in the coal mine,” says Nathan Clark,  associate professor in Pitt’s Department of Computational and Systems Biology, and the Pittsburgh Center for Evolutionary Biology and Medicine. “If you follow their health, it will tell you a lot about potential environmental issues that could eventually affect humans.”

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“The Liquid Asteroid” –Event Equal to 10 Billion Hiroshima Bombs Made the Rise of Homo Sapiens Possible

 

“All these fossils occur in a layer no more than 10cm thick,” said palaeontologist Ken Lacovara of the Chicxulub impact that ended the dinosaur epoch. “They died suddenly and were buried quickly. It tells us this is a moment in geological time. That’s days, weeks, maybe months. But this is not thousands of years; it’s not hundreds of thousands of years. This is essentially an instantaneous event.”
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Water on Mars –“Could Hold More Oxygen Than Previously Believed and Support Aerobic Life”

 

 

“Nobody ever thought that the concentrations of dissolved oxygen needed for aerobic respiration could theoretically exist on Mars,” says JPL’s Vlada Stamenković. Finding liquid water on Mars is one of the major goals of NASA’s Mars program. In recent months, data from a European spacecraft have suggested that liquid water may lie beneath a layer of ice at Mars’s south pole.

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