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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.
The Milky Way is brighter in the Southern Hemisphere than in the North. (Photo taken at La Silla Observatory) [2]. The fact that the sky is not completely dark at night, even in the absence of moonlight and city lights, can be easily observed, since if the sky were absolutely dark, one would not be able to see the silhouette of an object against the sky.
The New Horizons space probe similarly used Charon's shine to discover albedo variations on Pluto's dark side. [ 2 ] Although using a geocentric model in 510 AD, Indian mathematician and astronomer Aryabhata was the first to correctly explain how planets and moons have no light of their own, but rather shine due to the reflection of sunlight in ...
The night side of the moon, illuminated by earthshine, becomes visible next to the narrow crescent (11 percent, age of the moon = 3.3 days) with ash-grey moonlight. Image taken 20° over the western evening sky shortly after the equinox in spring with a particularly steep ecliptic as seen from Berlin.
The Pond—Moonlight: 1904 Edward Steichen: Mamaroneck, New York, United States Pictorialist hand-colored photograph; only three versions exist. In 2006, a print became the most expensive photo sold. [30] [31] [s 3] An Oasis in the Badlands 1905 Edward S. Curtis: South Dakota, United States [s 2] Bichonnade in Flight 1905 Jacques Henri Lartigue ...
First image, color images and movie of Earth from space taken by a person, by cosmonaut Gherman Titov – the first photographer from space. [25] [26] 1963 KH-7 Gambit: First high-resolution (sub-meter spatial resolution) satellite photography (classified). [27] 1964 Quill: First radar images of Earth from space, using a synthetic aperture ...
The logo of ESA's Moonlight Initiative. The Moonlight Initiative is a project by the European Space Agency with the goal of providing support for space companies in Europe to create uninterrupted telecommunications satellite coverage between Earth and the Moon, facilitating future lunar projects.
Observation and measurement of starlight through telescopes is the basis for many fields of astronomy, [2] including photometry and stellar spectroscopy. [3] Hipparchus did not have a telescope or any instrument that could measure apparent brightness accurately, so he simply made estimates with his eyes.