Picture of the Day
At 1545Z on May 18, 1980, GOES-3 took this visible-light image of the Pacific Northwest showing the massive eruption of Mount St. Helens in the western part of the Cascade range. A large pyroclastic plume of smoke and ash can be seen in the center of the image, taken two hours after the eruption began.
1974: Launch of SMS-1, the first geosynchronous weather satellite, detecting weather conditions from a fixed location above Earth's surface. more on twitter
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