Video

NASA Looks Back at 50 Years of Earth Day

NASA GODDARD EARTH DAY 2020

It’s been five decades since Apollo 8 astronaut William Anders photographed Earth peaking over the Moon’s horizon. The iconic image, dubbed Earthrise, inspired a new appreciation of the fragility of our place in the universe. Two years later, Earth Day was born to honor our home planet. As the world prepares to commemorate the 50th anniversary of Earth Day, NASA reflects on how the continued growth of its fleet of Earth-observing satellites has sharpened our view of the planet’s climate, atmosphere, land, polar regions and oceans.

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Credit: NASA’s Goddard Space Flight Center/Scientific Visualization Studio

 

50 Years of Earth Day 1970 -2020

Earth Day 2020 @ earthday.org

Arctic Sea Ice Is the Thinnest and Youngest It’s Been in 60 Years

seaicemin_2016_withaveext-1360

Working from a combination of satellite records and declassified submarine sonar data, NASA scientists have constructed a 60-year record of Arctic sea ice thickness.

Right now, Arctic sea ice is the youngest and thinnest its been since we started keeping records. More than 70 percent of… Continue reading “Arctic Sea Ice Is the Thinnest and Youngest It’s Been in 60 Years”