July 18, 2012 | 228 notes
There’s a Hole in Mars That Leads to an Underground Cavern
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.
Photo: NASA, JPL, University of Arizona
Ed note: Will this hole let out all of the water scientists recently discovered inside the planet?

