Jump to content

File:Hole on Mars.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (2,560 × 1,920 pixels, file size: 2.31 MB, MIME type: image/jpeg)

Summary

Description
English: Unusual hole in Mars. The hole was discovered by chance on images of the dusty slopes of Mars' Pavonis Mons volcano taken by the HiRISE instrument aboard the robotic Mars Reconnaissance Orbiter currently circling Mars. The hole appears to be an opening to an underground cavern, partly illuminated on the image right. Analysis of this and follow-up images revealed the opening to be about 35 meters across, while the interior shadow angle indicates that the underlying cavern is roughly 20 meters deep. Why there is a circular crater surrounding this hole remains a topic of speculation, as is the full extent of the underlying cavern. Holes such as this are of particular interest because their interior caves are relatively protected from the harsh surface of Mars, making them relatively good candidates to contain Martian life. These pits are therefore prime targets for possible future spacecraft, robots, and even human interplanetary explorers.
Date
Source http://apod.nasa.gov/apod/ap120718.html
Author Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
Permission
(Reusing this file)
http://apod.nasa.gov/apod/lib/about_apod.html#srapply

Licensing

Public domain 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:

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

19 July 2012

image/jpeg

File history

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

Date/TimeThumbnailDimensionsUserComment
current19:39, 4 August 2012Thumbnail for version as of 19:39, 4 August 20122,560 × 1,920 (2.31 MB)Badseedfull res
13:58, 19 July 2012Thumbnail for version as of 13:58, 19 July 2012960 × 720 (61 KB)Terraflorin

The following page uses this file:

Global file usage

The following other wikis use this file:

Metadata