ScienceSpeculation about an ancient excavation in Mars' Elysium Planitia
A post points to straight edges and right angles in a 2014 Mars orbiter image and asks whether the feature could be an ancient excavation. The author acknowledges that the idea is speculative.
TLDR
A post analyzes a surface feature in Elysium Planitia using an image it identifies as taken by NASA's Mars Reconnaissance Orbiter HiRISE camera on May 15, 2014. The author describes straight edges and right angles and estimates a depth of about three metres based on shadow lengths and the Sun's angle. They suggest it could be an ancient excavation rather than a typical circular impact crater, but explicitly acknowledge that they can only speculate about its origin.
Combined views
3K
1 Source, first seen 5d ago
Speculation about an ancient excavation in Mars' Elysium Planitia
A post points to straight edges and right angles in a 2014 Mars orbiter image and asks whether the feature could be an ancient excavation. The author acknowledges that the idea is speculative.