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The images, available 12 to 36 hours after they are made, have been posted to a dedicated web page since September 2015. [27] DSCOVR was placed in operation at the L1 Lagrange point to monitor the Sun, because the constant stream of particles from the Sun (the solar wind) reaches L1 about 60 minutes
The Blue Marble is a photograph of Earth taken on December 7, 1972, by either Ron Evans or Harrison Schmitt aboard the Apollo 17 spacecraft on its way to the Moon.Viewed from around 29,400 km (18,300 mi) from Earth's surface, [1] a cropped and rotated version has become one of the most reproduced images in history.
DSCOVR is unofficially known as GORESAT, because it carries a camera always oriented to Earth and capturing full-frame photos of the planet similar to the Blue Marble. This concept was proposed by then-Vice President of the United States Al Gore in 1998 [4] and was a centerpiece in his 2006 film An Inconvenient Truth. [5]
Projections of the sphere like the azimuthal equidistant projection have been co-opted as images of the flat Earth model depicting Antarctica as an ice wall [1] [2] surrounding a disk-shaped Earth. Twenty-two images of the Earth taken from space by the DSCOVR satellite, showing the contemporary scientific view of Earth as a spherical globe
In short, it is a web and computer program that takes satellite images, aerial photography, and GIS (Geographic Information System) data and superimposes all of this on a 3D globe.
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