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Earth Suffers From CO2 Allergy
About 12 million years ago, Earth wasn’t sensitive to carbon dioxide ups and downs. But like seasonal allergies that...
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The Enigma 1,800 Miles Below Us
Geologists have long known that Earth’s core, some 1,800 miles beneath our feet, is a dense, chemically doped ball...
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New Jupiter Mission to Target Alien Oceans
The European Space Agency’s next big mission may be particularly juicy for scientists hunting for signs of extraterrestrial life....
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Ancient Volcanic Blast Provides More Evidence of Water on Early Mars
The atmosphere of Mars is less than 1% the density of Earth’s. It’s one of the reasons liquid water...
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An Underground Fossil Forest Offers Clues on Climate Change
In the clammy depths of a southern Illinois coal mine lies the largest fossil forest ever discovered, at least...
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Lightning Signature Could Reveal Solar System’s Origins
Every second, lightning flashes some 50 times on Earth. Together these discharges coalesce and get stronger, creating electromagnetic waves...
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Solar Storms Present a Growing Threat
Geomagnetic storms generated by the interaction between the electrically charged solar particles and the earth’s own magnetic field could...
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Life On Earth Evolved From ‘Redundant’ Chemical Systems
The earliest cells were unstable chemical systems that survived by combining a handful of shaky carbon-based assemblies together, researchers...
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Heavy Elements Key for Planet Formation
Planets form more commonly in star systems with relatively high concentrations of elements heavier than hydrogen and helium, a...
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Theorizing a Migratory Earth
Earth should be a “snowball planet,” according to common theories of stellar evolution that predict that the sun was...