File:Impact event.jpg

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• Use of <a href="https://en.wikipedia.org/wiki/NASA_logo" class="extiw" title="w:NASA logo">NASA logos</a>, insignia and emblems is restricted per U.S. law <a rel="nofollow" class="external text" href="http://www.access.gpo.gov/nara/cfr/waisidx_07/14cfr1221_07.html">14 CFR 1221</a>.
• The NASA website hosts a large number of images from the <a href="https://en.wikipedia.org/wiki/Soviet_space_program" class="extiw" title="w:Soviet space program">Soviet</a>/<a href="https://en.wikipedia.org/wiki/Russian_Federal_Space_Agency" class="extiw" title="w:Russian Federal Space Agency">Russian space agency</a>, and other non-American space agencies. These are not necessarily in the public domain.
• Materials based on <a href="https://en.wikipedia.org/wiki/Hubble_Space_Telescope" class="extiw" title="w:Hubble Space Telescope">Hubble Space Telescope</a> data may be copyrighted if they are not explicitly produced by the <a href="https://en.wikipedia.org/wiki/Space_Telescope_Science_Institute" class="extiw" title="w:Space Telescope Science Institute">STScI</a>.<a rel="nofollow" class="external autonumber" href="http://hubblesite.org/copyright/">[1]</a> See also {{<a href="//commons.wikimedia.org/wiki/Template:PD-Hubble" title="Template:PD-Hubble">PD-Hubble</a>}} and {{<a href="//commons.wikimedia.org/wiki/Template:Cc-Hubble" class="mw-redirect" title="Template:Cc-Hubble">Cc-Hubble</a>}}.
• The <a href="https://en.wikipedia.org/wiki/Solar_and_Heliospheric_Observatory" class="extiw" title="w:Solar and Heliospheric Observatory">SOHO (ESA & NASA)</a> joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. <a rel="nofollow" class="external autonumber" href="http://sohowww.nascom.nasa.gov/data/summary/copyright.html">[2]</a>
• Images featured on the <a href="https://en.wikipedia.org/wiki/Astronomy_Picture_of_the_Day" class="extiw" title="w:Astronomy Picture of the Day">Astronomy Picture of the Day</a> (APOD) web site may be copyrighted. <a rel="nofollow" class="external autonumber" href="http://antwrp.gsfc.nasa.gov/apod/lib/about_apod.html#srapply">[3]</a>
• The <a href="https://en.wikipedia.org/wiki/National_Space_Science_Data_Center" class="extiw" title="w:National Space Science Data Center">National Space Science Data Center</a> (NSSDC) site has been known to host <a href="//commons.wikimedia.org/wiki/Commons:Village_pump/Copyright/Archive/2014/08#Copyright_status_of_File:Venera_13_-_ven13right.png" title="Commons:Village pump/Copyright/Archive/2014/08">copyrighted content</a> even though its <a rel="nofollow" class="external text" href="http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-faq.html#use">photo gallery FAQ</a> states that all of the images in the photo gallery are in the public domain.