In a series of images acquired between 3:50 and 8:45 p.m. EDT on July 16, 2015, the moon can be seen passing in front of a rotating Earth, the warm gray face of its far side framed by the swirling-cloud-covered blue water of the eastern Pacific Ocean. The north pole is at the 11 o’clock position, illustrating our planet’s 23.5-degree axial tilt.
The individual images were taken by the high-definition EPIC instrument (yes, that’s a real NASA acronym) using visible-light channels; it’s how Earth and the moon would appear to our eyes were we there with DSCOVR at L1 (perhaps with a little help from a telephoto lens). DSCOVR is a partnership between NASA, NOAA and the U.S. Air Force.
L1 is a point in space about 1/100th the distance to the sun where the gravitational pulls from it and the Earth cancel each other out, allowing spacecraft to be “parked” there. Launched aboard a SpaceX Falcon 9 rocket on Feb. 11, 2015, NOAA’s DSCOVR spacecraft arrived at L1 on June 8.
Read more at Discovery News
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