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Did life on Earth begin at hot-water vents on the sea floor? By EarthSky Atlantic Ocean limestone towers known as the “Lost City.” Alkaline hydrothermal vents are suggested to be the birthplace of the first living organisms on the ancient Earth. Scientists are interested in understanding early life on Earth because if we ever hope to find life on other worlds – with subsurface oceans such as Jupiter’s Europa and Saturn’s Enceladus Image - D. Kelley and M. Elend/University of Washington
Rapid changes in the Earth's core: The magnetic field and gravity from a satellite perspective Oct. 22, 2012 Annual to decadal changes in Earth's magnetic field in a region that stretches from the Atlantic to the Indian Ocean have a close relationship with variations of gravity in this area.