Hydrothermal vents at the sea floor offer clues to the origins of life on earth, and beyond.
Before life on earth, what was there?
To be alive is to ponder that question and, perhaps...
READ MOREArmed with GPS-enabled iPads and infrared surface temperature thermometers, students in an urban high school in Pennsylvania fan out on their school property to take temperature readings of grass...
READ MOREFor years, scientists have known that human activities that burn fossil fuels like coal and oil are pumping carbon dioxide (CO2) into the atmosphere much faster than it is removed by natural...
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