File:NASA-Mars-$tarTrekFleetLogo-20190612.jpg

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Summary

Description	English: Star Trek on Mars: NASA spots Starfleet logo in dune footprint - Beam me down to Mars, Scotty.^[1]^[2] References ↑ Kooser, Amanda (12 June 2019). "Star Trek on Mars: NASA spots Starfleet logo in dune footprint - Beam me down to Mars, Scotty.". CNET. Retrieved on 12 June 2019. ↑ Samson, Diane (16 June 2019). "William Shatner Takes Playful Jab At 'Star Wars' Over 'Starfleet' Symbol Found On Mars". TechTmes.com. Retrieved on 16 June 2019. From JPL Photojournal: Long ago, there were large crescent-shaped (barchan) dunes that moved across this area, and at some point, there was an eruption. The lava flowed out over the plain and around the dunes, but not over them. The lava solidified, but these dunes still stuck up like islands. However, they were still just dunes, and the wind continued to blow. Eventually, the sand piles that were the dunes migrated away, leaving these "footprints" in the lava plain. These are also called "dune casts" and record the presence of dunes that were surrounded by lava.
Date	12 June 2019
Source	https://pbs.twimg.com/media/D84FPOtU8AAHOGB.jpg; see also https://photojournal.jpl.nasa.gov/catalog/PIA23288 and https://hirise.lpl.arizona.edu/ESP_059708_1305
Author	NASA/JPL/University of Arizona

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ESP_059708_1305.

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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."