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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.
In spiral galaxies the central bulge typically co-rotates with the disk but the bulge in the galaxy NGC 7331 is rotating in the opposite direction to the rest of the disk. [7] In both visible light and infrared photos of the NGC 7331, the core of the galaxy appears to be slightly off-center, with one side of the disk appearing to extend further ...
This image is a composite image collected over 16 days by the MODIS sensor on NASA’s Terra satellite. NASA Earth science satellite fleet as of September 2020, planned through 2023. Earth observation satellite missions developed by the ESA as of 2019. Earth observation satellites are Earth-orbiting spacecraft with sensors used to collect ...
10 November 1967: NASA's first full-disc, true-color image of Earth, taken by the ATS-3 satellite. The image was used for the cover of the first edition of the Whole Earth Catalog the following year. 1972 7 December 1972: the widely used The Blue Marble was taken by the crew of Apollo 17. [39] The photograph's original orientation had south ...
The geometric center of the Earth, i.e. the arithmetic mean position of all points within the oblate spheroid that is the precise shape of the Earth. geocentric With reference to, or pertaining to, the geometric center of the Earth; [14] centered upon the Earth, e.g. a geocentric orbit. geocentric zenith
While constructed to avoid self-reference, there is no consensus whether it relies on self-reference or not. Opposite Day: "It is opposite day today." Therefore, it is not opposite day, but if you say it is a normal day it would be considered a normal day, which contradicts the fact that it has previously been stated that it is an opposite day.
Here are some of the memorable images from that cloudless Tuesday morning. Sept. 11 attacks: These iconic images from 9/11 are truly unforgettable September 11 Terrorist Attacks in photos
The ecliptic is the apparent path of the Sun throughout the course of a year. [5] Because Earth takes one year to orbit the Sun, the apparent position of the Sun takes one year to make a complete circuit of the ecliptic. With slightly more than 365 days in one year, the Sun moves a little less than 1° eastward [6] every day.