Mars
As of 2007 seven putative cave entrances have been identified in satellite imagery of the planet Mars, all so far located on the flanks of Arsia Mons. A more recent photograph of one of the features shows sunlight illuminating a side wall, suggesting that it may simply be a vertical pit rather than an entrance to a larger underground space.
Read more about this topic: List Of Caves
Famous quotes containing the word mars:
“It makes us, or it mars us, think on that,
And fix most firm thy resolution.”
—William Shakespeare (1564–1616)
“Human beings will be happier—not when they cure cancer or get to Mars or eliminate racial prejudice or flush Lake Erie but when they find ways to inhabit primitive communities again. That’s my utopia.”
—Kurt Vonnegut, Jr. (b. 1922)
“But in the dome of mighty Mars the red,”
—Geoffrey Chaucer (1340?–1400)