• MAA-009: Tubular Features

- Image Analysis Report


Image Analysis Report


MAA Report Ref: MAA-009

Report Date: July-August 2017

Research Status: Open - Possible construction/technology

Description: Tubular Features
Approximate size:  1.5 km

Mission image/date: MGS January 2000

Pixel width: 4.34 m
Location: Aram Chaos

Found by: J. P. Skipper

Image credits: NASA/JPL/MSSS

Graphics/image editing: Mars Archaeology Archive

Image source: (See image captions)


When first discovered by J.P. Skipper, this feature was presented as a possible example of artificial pipes spewing liquid. The low pixel size however will limit the possibility of that determination.

What is for certain, is that the area to the north and north-west, shows several lighter variations of the dark shapes and linear striations that make up the tubular features and the 'spray', strongly indicating their origin is one and the same (See MAA-009.3).

This suggests that the 'tubes or pipes' are either newer formations, or that reflections of light and shadow play is responsible for their prominent appearance in the image.


Two tube-like formations each over 1 km in length, suggesting artificial constructions, with one of them possibly gushing liquid.


Ground level illusions caused by reflective light and shadows.

MAA-009.1 Tubular Features: Distance

​Image credit: NASA/JPL/MSSS

Image source: See MAA-009.1

MAA-009.2 Tubular Features: Close-up - MGS 2000

​Image credit: NASA/JPL/MSSS

Original Image source (image shown) no longer available at MSSS: http://www.msss.com/moc_gallery/m07_m12/nonmaps/M11/M1100099.gif

PDS image source: https://ida.wr.usgs.gov/fullres/divided/m11000/m1100099d.jpg

MAA-009.3 Tubular Features: Area to the north showing muted but identical shapes to the dark features and 'spray'

​Image credit: NASA/JPL/MSSS

Image source: See MAA-009.1

MAA-009.4 Tubular Features: Pipe structures?

​Image credit: NASA/JPL/MSSS

Image source: See MAA-009.1

Graphics/image editing: Mars Archaeology Archive