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Posted: November 17, 2017

Breathtaking NASA time lapse shows how much Earth has changed over 20 years

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By Fiza Pirani, The Atlanta Journal-Constitution

This fall marks 20 years since NASA satellites started to continuously observe life on Earth.

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To commemorate the monumental discoveries over the years, NASA is sharing stories and videos about how much views from up above have taught us about life on our home planet and the search for life elsewhere.

A new time-lapse animation, shown below, captures 20 years’ worth of the planet’s changing land and ocean life as seen from the Sea-viewing Wide Field-of view Sensor, which launched in 1997.

“These are incredibly evocative visualizations of our living planet,” Gene Carl Feldman, an oceanographer at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, said in a NASA news release last week. “That’s the Earth. That is it breathing every single day, changing with the seasons, responding to the sun, to the changing winds, ocean currents and temperatures."

>> Related: 15,000 scientists warn it will soon be 'too late' to save Earth

Over the past 20 years, NASA scientists have monitored the health of crops, forests and fisheries around the globe and have learned more about the long-term changes across continents and ocean basins, the agency wrote in the news release.


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