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VisibleEarth.NASA.gov displays a collection of images and animations of the Earth that users can freely access and download in different formats and resolutions. The license of the images permits users to re-use and re-p... More »

www.reference.com Science Astronomy

The National Aeronautics and Space Administration's Visible Earth photo collection and MapQuest's satellite maps are two places where individuals can go to view satellite images of the earth. NASA's collection includes i... More »

www.reference.com Science Astronomy Planets

The images that appear on Google Earth are from 1 to 3 years old, not live. Images are collected over time. More »

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NASA is the acronym for the National Aeronautics and Space Administration. It was founded by the U.S. government in 1958 by President Dwight D. Eisenhower and grew out of the National Advisory Committee for Aeronautics. ... More »

www.reference.com Science Astronomy

The Greek mathematician Pythagoras was the first to propose the idea of a round Earth, primarily based on the behavior of the Earth's shadow on the moon. Aristotle made several arguments for a spherical Earth based on ph... More »

www.reference.com Science Astronomy

While NASA has not released an official statement regarding the four so-called blood moons of 2014-2015, it has published a report that explains when and why they show up in the night sky. The series of lunar eclipses be... More »

www.reference.com Science Astronomy

NASA maintains a solar eclipse page for past and future eclipses, including the solar eclipse of August 21, 2017. The total eclipse on that date is visible in the United States along a narrow corridor from Oregon to Sout... More »

www.reference.com Science Astronomy