File:NearEarthAsteroids-Discovered-19980701-20180525.gif

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Summary

Description	English: Twenty Years of Planetary Defense - July 23, 2018 https://www.jpl.nasa.gov/news/news.php?feature=7194 The chart depicts the cumulative number of known Near-Earth asteroids (NEAs) versus time. The area in red depicts the number of known NEAs larger than 0.6 miles (1 kilometer). The area in orange depicts the quantity of known NEAs larger than 460 feet (140 meters). The area in blue depicts the number of known NEAs in all sizes. Image credit: NASA/JPL-Caltech
Date	23 July 2018
Source	https://www.jpl.nasa.gov/images/asteroid/20180723/graph-16.gif
Author	NASA/JPL-Caltech

Licensing

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] 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."

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	Date/Time	Dimensions	User	Comment
current	18:22, 23 July 2018	1,920 × 1,080 (153 KB)	Drbogdan	User created page with UploadWizard

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Near-Earth asteroid

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Software used	Adobe Photoshop CC 2018 (Windows)