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Good afternoon, Rallypoint, and welcome to the August 6th edition of Astronomy Picture of the Day (APOD): "Stereo Phobos." Break out the red and blue glasses again...things are looking 'groovy' on the Martian moon Phobos. In 1976, images from NASA's Viking revealed numerous parallel, channel-like grooves on the surface of Phobos. Researchers have suggested many theories as to what created the grooves...all of which are still debated.
After a review of the different theories and evidence gathered by the European Space Agency's (ESA) Mars Explorer orbiter, two scientists conclude that the grooves are chains of secondary impacts from material blasted to Phobos by primary impacts on Mars itself. Based on detailed maps of the grooves, the ejecta on the surface of Phobos has been traced back to source locations on the Martian surface.
Pretty groovy, hmmm?
After a review of the different theories and evidence gathered by the European Space Agency's (ESA) Mars Explorer orbiter, two scientists conclude that the grooves are chains of secondary impacts from material blasted to Phobos by primary impacts on Mars itself. Based on detailed maps of the grooves, the ejecta on the surface of Phobos has been traced back to source locations on the Martian surface.
Pretty groovy, hmmm?
APOD: 2022 August 6 - Stereo Phobos
Posted from apod.nasa.gov
NASA
Space
Science
Photography
Astronomy
Edited >1 y ago
Posted >1 y ago
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I still haven't found my stereo glasses, Maj William W. 'Bill' Price but based on the coloring of the image, I can see enough to imagine what it really looks like!! Thanks for a great space/astronomy share, Bill...
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Maj William W. "Bill" Price: With glasses on I feel like I am able to touch that moon. Wait a minute, I think I feel the grooves!!!!!
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