Image:Marshole.jpg

From Wikipedia, the free encyclopedia

Wikimedia Commons logo This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

[edit] Summary

Description

Black spots have been discovered on Mars that are so dark that nothing inside can be seen. Quite possibly, the spots are entrances to deep underground caves capable of protecting Martian life, were it to exist. The unusual hole pictured above was found on the slopes of the giant Martian volcano Arsia Mons. The above image was captured three weeks ago by the HiRISE instrument onboard the Mars Reconnaissance Orbiter currently circling Mars. The holes were originally identified on lower resolution images from the Mars Odyssey spacecraft, The above hole is about the size of a football field and is so deep that it is completely unilluminated by the Sun. Such holes and underground caves might be prime targets for future spacecraft, robots, and even the next generation of human interplanetary explorers.
Source

http://antwrp.gsfc.nasa.gov/apod/ap070528.html
Date

May 28 2007
Author

NASA, JPL, U. Arizona
Permission
(Reusing this image)

http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html

[edit] Licensing

Public domain
 This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).

Deutsch | English | Español | Français | Nederlands | Português | Русский | ‪中文(简体)‬ | ‪中文(繁體)‬ | +/-
Warning sign
 Warnings:

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current20:41, 3 June 20071,475×2,015 (516 KB)Imaninjapirate ({{Information |Description=Black spots have been discovered on Mars that are so dark that nothing inside can be seen. Quite possibly, the spots are entrances to deep underground caves capable of protecting Martian life, were it to exist. The unusual hole )
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Software used Adobe Photoshop CS3 Windows
File change date and time 10:29, 23 May 2007
Color space 65535