Most ISS images are nadir, in which the center point of the image is directly beneath the lens of the camera, but this one is not. This highly oblique image of northwestern African captures the curvature of the Earth and shows its atmosphere. The Earth's atmosphere is composed of 78 percent nitrogen, 21 percent oxygen and 1 percent other constituents, and it shields us from nearly all harmful radiation coming from the sun and other stars. It also protects us from meteors, most of which burn up before they can strike the planet. Affected by changes in solar activity, the upper atmosphere contributes to weather and climate on Earth. Image Credit: NASA/JPL/UCSD/JSC
Date
11/3/08
High Above
On March 7, 1947, not long a
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3/6/09
Description
On March 7, 1947, not long after the end of World War II and years before Sputnik ushered in the space age, a group of soldiers and scientists in the New Mexico desert saw something new and wonderful in these grainy black-and-white-photos -- the first pictures of Earth as seen from altitude greater than 100 miles in space. Just the year before in 1946, scientists like John T. Mengel, a NASA pioneer who later oversaw the Vanguard Program, began experimenting with captured German V-2 rockets. Mengel conducted upper atmosphere experiments by launching the rockets into near-earth orbit. He designed and fabricated the first research nose shell to replace of the V-2 warhead and began placing cameras in the nose shell. Before the Small Steps Program began in 1946 using V-2 rockets to take images from space, the highest pictures ever taken of the Earth's surface were from the Explorer II balloon, which ascended 13.7 miles in 1935, high enough to discern the curvature of the Earth. The V-2 cameras reached more than five times that altitude and clearly showed the planet set against the blackness of space. When the movie frames were stitched together, the panoramas taken in the late 1940s covered a million square miles or more at a single glance. Image Credit: Johns Hopkins Applied Physics Laboratory
Date
3/6/09
Apollo 17 30th Anniversary:
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Title
Apollo 17 30th Anniversary: Earth photo Drift-in
Abstract
The Apollo 17 spacecraft was launched from the Kennedy Space Center at midnight on December 7th, 1972. Just hours after lift-off, the command module aligned with the Earth and Sun, allowing the crew to photograph Earth in full light. For the first time in an Apollo mission, the Antarctic continent was visible allowing for a photo to be taken by the orbiting astronauts. The photo was taken at about 18,000 statute miles away from Earth. Virtually every picture showing the full Earth is derived from this one photograph. Television, newspapers, websites, and marketing material have all used this photograph over the years. Geostationary weather satellites, Galileo, and many other spacecraft have returned great pictures of the full Earth from space, but this image is still the number one requested photo in the NASA photo archives.
Completed
2002-11-21
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