• MAA-026: Phobos Subsurface Structure? - Image Analysis Report

Image Analysis Report

IMAGE DETAILS

MAA Report Ref: MAA-026

Report date: July-August 2017

Research Status: Open - Possible artificial construction

Description: Phobos Subsurface Structure?
Approximate size: 9 km / 5.6 miles

Mission: MRO/HiRISE
Location: Phobos Moon, over 'Stickney Crater'

Pointed out by: M. J. Craig

Image date: March 2008
Image credit: NASA/JPL/University of Arizona

Graphics/image editing: Mars Archaeology Archive

Image source: https://solarsystem.nasa.gov/galleries/phobos-in-color

OBSERVATIONS

The rectilinear grooves on Phobos look remarkably artificial, but may just as well have been caused by natural processes as yet unclear. A partially hollow interior has been confirmed, formed of large cavities.

POTENTIAL FOR AN ARTIFICIAL STRUCTURE

A prevalent pattern of rectilinear markings cover most of the moon's surface, first commented upon by R C Hoagland from the Mars Express image of 2006. This may indicate that an artificial structure exists beneath the surface dust. Research by Astrophysicist Dr Iosif S Shklovskiy suggested that the moon was hollow, a theory supported by the United States Naval Observatory and results from the Phobos flyby mission. A hollow moon may indicate an artificial body with compartments. A vertical object on the surface found by Efrain Palermo (MAA-026.3) and noted by former NASA astronaut Buzz Aldrin, may be an artificial object.

COMMON EXPLANATION

The grooves on the surface of Phobos are "stretch marks" caused by the competing pull of the planet and the moon. Some research also suggests they could also be caused by impacts from asteroids.

MAA-026.1 Phobos Subsurface Structure?: Geometrical detail over Stickney Crater - MRO/HiRISE 2008

Image credit: NASA/JPL/University of Arizona

MAA-026.2 Phobos Subsurface Structure?: Rectlinear grid pattern - Mars Express 2006

Found by: Richard C. Hoagland

Location size: 5 km / 3 miles

Image pixel width: 9 m

Image credit: ESA/DLR/FU Berlin (G. Neukum)

Image source: http://www.esa.int/spaceinimages/Images/2010/03/Mars_moon_Phobos

Graphic: Mars Anomaly Archive

MAA-026.3 The Phobos Monolith - MOC/MGS September 1998

Found by: Efrain Palermo

Object size: 76 m / 250 ft

Image credit: NASA/JPL/MSSS

Original Image source but no longer available from MSSS (image shown above): http://www.msss.com/moc_gallery/ab1_m04/nonmaps/SP255103.gif

New PDS image source:

https://ida.wr.usgs.gov/fullres/divided/sp2551/sp255103h.jpg