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The Blue Marble is a photograph of Earth taken on December 7, 1972, from a distance of around 29,400 km (18,300 mi) from Earth's surface.. The original image (NASA designation AS17-148-22727) was taken by either Ron Evans or Harrison Schmitt of the crew of the Apollo 17 spacecraft on its way to the Moon, and showed Earth with the South Pole facing upwards; since then, a cropped and rotated ...
Earthrise, taken on December 24, 1968, by Apollo 8 astronaut William Anders. Earthrise is a photograph of Earth and part of the Moon 's surface that was taken from lunar orbit by astronaut William Anders on December 24, 1968, during the Apollo 8 mission. [1] [2] [3] Nature photographer Galen Rowell described it as "the most influential ...
First image, color images and movie of Earth from space taken by a person, by cosmonaut Gherman Titov – the first photographer from space. 1963 KH-7 Gambit: First high-resolution (sub-meter spatial resolution) satellite photography (classified). 1964 Quill: First radar images of Earth from space, using a synthetic aperture radar (SAR).
The roughly spherical shape of Earth can be empirically evidenced by many different types of observation, ranging from ground level, flight, or orbit. The spherical shape causes a number of effects and phenomena that combined disprove flat Earth beliefs . These include the visibility of distant objects on Earth's surface; lunar eclipses ...
Spherical Earth or Earth's curvature refers to the approximation of the figure of the Earth as a sphere . The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers. [1] [2] In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of ...
As of 2013 the most distant gravitational lens galaxy, J1000+0221, had been found using NASA's Hubble Space Telescope. [ 30 ] [ 31 ] While it remains the most distant quad-image lensing galaxy known, an even more distant two-image lensing galaxy was subsequently discovered by an international team of astronomers using a combination of Hubble ...
Early photos of Earth taken from space inspired a mild version of the overview effect in earthbound non-astronauts, and became prominent symbols of environmental concern. [ 1 ] English astronomer Fred Hoyle wrote in 1948 that, "once a photograph of the Earth, taken from the outside, is available, a new idea as powerful as any in history will be ...
Perspective distortion. Simulation showing how adjusting the angle of view of a camera, while varying the camera's distance and keeping the object in frame, results in vastly differing images. At narrow angles and long distances, light rays are nearly parallel, resulting in a "flattened" image. At wide angles and short distances, objects appear ...