Image: Image of what appears to be trees or shrubs on the surface of mars. Taken by the Mars Global Surveyor. Date Unknown. Photo by NASA's Jet Propulsion Laboratory. Image was taken as if you were standing directly over a tree and looking down at it.

Sources: YouTube video of press conference on May 8, 2001. In the video, it is said that all images shown can be found at this link Cydonia Region, but they are not.

I believe the fact the link is mentioned in the video to be from NASA's JPL, and the fact that the images were taken by NASA's Mars Global Surveyor, these qualify as Public Domain under NASA's rules.

	本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策）
	警告: 使用NASA的logo，徽標等受到美國法律14 CFR 1221的限制。 NASA網站還提供大量來自蘇聯/俄羅斯航天機構，以及其他非美國的太空機構的圖像。這些圖像不一定屬於公有領域。 根據哈勃空間望遠鏡的數據制作的素材，如果不是明確聲明由STScI提供，則可能受到版權保護。[1] 參看{{PD-Hubble}}和{{Cc-Hubble}}或{{Spacetelescope.org}}。 SOHO (ESA & NASA)聯合項目的探測器所創作的所有內容受到著作權保護，並且進行非教育性質的商業應用需要授權。[2] 每日一天文圖（APOD）網站的特色圖片可能受到著作權保護。[3]