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Past images are stored in the APOD Archive, with the first image appearing on June 16, 1995. [3] This initiative has received support from NASA, the National Science Foundation, and MTU. The images are sometimes authored by people or organizations outside NASA, and therefore APOD images are often copyrighted, unlike many other NASA image ...
Sagan goes on to extend the comparison in terms of surface area, explaining that if the Cosmic Calendar were scaled to the size of a football field, then "all of human history would occupy an area the size of [his] hand". [3] A similar analogy used to visualize the geologic time scale and the history of life on Earth is the Geologic Calendar.
These featured pictures, as scheduled below, appeared as the picture of the day (POTD) on the English Wikipedia's Main Page in November 2024. Individual sections for each day on this page can be linked to with the day number as the anchor name (e.g. [[Wikipedia:Picture of the day/November 2024#1]] for November 1).
Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."
If you skip a certain featured picture, be sure to add it to Wikipedia:Picture of the day/Unused with an explanation. The easiest way to schedule a POTD is by finding a future date in the monthly archive pages (linked to at Wikipedia:Picture of the day/Archive) that does not yet have an image scheduled and clicking on the "create" link for the ...
Therefore, the NASA pictures are legally in the public domain. Photographs and other NASA images should include the NASA image number if you have it, for easy reference. When accessing space photographs, be sure that you know the source. Pictures not produced by NASA employees may have different usage restrictions.
Past images are stored in the APOD Archive, with the first image appearing on June 16, 1995. [283] This initiative has received support from NASA, the National Science Foundation, and MTU. The images are sometimes authored by people or organizations outside NASA, and therefore APOD images are often copyrighted, unlike many other NASA image ...
Picture of the day. Composite photo of the Sun and Earth, showing the difference in size between the two astronomical objects. Although the Sun is an average-sized star, it is so large that its volume is equivalent to 1.3 million Earths and it contains approximately 99% of the total mass of the Solar System.