Posted on May 24, 2020
APOD: 2020 May 24 - Valles Marineris: The Grand Canyon of Mars
604
102
14
23
23
0
Good morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Valles Marineris: The Grand Canyon of Mars." Valles Marineris is 2500 miles long and reaches depths of up to 4 miles. For comparison, the Grand Canyon in Arizona is about 500 miles long and only 1 mile deep. To give you a better idea of what all that means, the extent of Valles Marineris is as long as the United States when measured from coast to coast.
This composite image was assembled from hundreds of photos taken by the Viking probes in the 1970s (my advisor in graduate school, Duwayne Anderson, was one of the principal investigators for Viking). Valles Marineris is believed to be a large tectonic "crack" in the Martian crust, forming as the planet cooled, affected by the rising crust to the west, and subsequently widened by erosional forces. However, near the eastern flanks of the rift there appear to be some channels that may have been formed by water (like our Grand Canyon).
The first explorers who look out on Valles Marineris are in for a view.
This composite image was assembled from hundreds of photos taken by the Viking probes in the 1970s (my advisor in graduate school, Duwayne Anderson, was one of the principal investigators for Viking). Valles Marineris is believed to be a large tectonic "crack" in the Martian crust, forming as the planet cooled, affected by the rising crust to the west, and subsequently widened by erosional forces. However, near the eastern flanks of the rift there appear to be some channels that may have been formed by water (like our Grand Canyon).
The first explorers who look out on Valles Marineris are in for a view.
APOD: 2020 May 24 - Valles Marineris: The Grand Canyon of Mars
Posted from apod.nasa.gov
NASA
Space
Science
Photography
Astronomy
Posted >1 y ago
Responses: 9
11
11
0
Great APOD Share Maj William W. 'Bill' Price enjoy the weekend and be safe
LTC Stephen F. SP5 Mark Kuzinski COL Mikel J. Burroughs SMSgt Lawrence McCarter Maj William W. 'Bill' Price SPC Margaret HigginsMaj Bill Smith, Ph.D.SGT Steve McFarlandLTC (Join to see) PO3 Craig Phillips Lt Col Charlie Brown SSG Michael Noll PO1 H Gene Lawrence TSgt Joe C. Lt Col John (Jack) Christensen Sgt (Join to see)SFC Joe S. Davis Jr., MSM, DSL SSG Donald H "Don" Bates Cpl (Join to see) PVT Mark Zehner
LTC Stephen F. SP5 Mark Kuzinski COL Mikel J. Burroughs SMSgt Lawrence McCarter Maj William W. 'Bill' Price SPC Margaret HigginsMaj Bill Smith, Ph.D.SGT Steve McFarlandLTC (Join to see) PO3 Craig Phillips Lt Col Charlie Brown SSG Michael Noll PO1 H Gene Lawrence TSgt Joe C. Lt Col John (Jack) Christensen Sgt (Join to see)SFC Joe S. Davis Jr., MSM, DSL SSG Donald H "Don" Bates Cpl (Join to see) PVT Mark Zehner
(11)
(0)
8
8
0
“Mars on the Rim” - Canyon Lullaby
Mars on the Rim / Paul Winter / Canyon Lullaby / Track 15 One night as Paul looked upwards from the floor of Bach’s Canyon, the night sky was framed by the h...
Good afternoon my friend Maj William W. 'Bill' Price and thank you for posting the NASA Astronomy Picture of the Day (APOD) for Sunday, May 24, 2020 entitled "Valles Marineris: The Grand Canyon of Mars."
Image: Valles Marineris - The Grand Canyon of Mars - Image Credit - NASA, USGS, Viking Project
APOD background "Explanation: The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep. The origin of the Valles Marineris remains unknown, although a leading hypothesis holds that it started as a crack billions of years ago as the planet cooled. Several geologic processes have been identified in the canyon. The featured mosaic was created from over 100 images of Mars taken by Viking Orbiters in the 1970s."
Thank you my friends Maj Marty Hogan TSgt Joe C. for mentioning me.
Mars on the Rim / Paul Winter / Canyon Lullaby
https://www.youtube.com/watch?v=3SAhMNFAXFo
FYI SPC Woody Bullard PO1 H Gene Lawrence SPC Margaret Higgins COL Mikel J. Burroughs SMSgt Lawrence McCarter 1SG Joseph Dartey TSgt David L. SSG Michael Noll PVT Mark Zehner SPC Mark Beard SPC Mark Huddleston
Image: Valles Marineris - The Grand Canyon of Mars - Image Credit - NASA, USGS, Viking Project
APOD background "Explanation: The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep. The origin of the Valles Marineris remains unknown, although a leading hypothesis holds that it started as a crack billions of years ago as the planet cooled. Several geologic processes have been identified in the canyon. The featured mosaic was created from over 100 images of Mars taken by Viking Orbiters in the 1970s."
Thank you my friends Maj Marty Hogan TSgt Joe C. for mentioning me.
Mars on the Rim / Paul Winter / Canyon Lullaby
https://www.youtube.com/watch?v=3SAhMNFAXFo
FYI SPC Woody Bullard PO1 H Gene Lawrence SPC Margaret Higgins COL Mikel J. Burroughs SMSgt Lawrence McCarter 1SG Joseph Dartey TSgt David L. SSG Michael Noll PVT Mark Zehner SPC Mark Beard SPC Mark Huddleston
(8)
(0)
LTC Stephen F.
Grand Canyons of Earth and Mars
The Grand Canyon is a unique and spectacular land form. There is nothing quite like it anywhere else on Earth. But if we cast our gaze to distant horizons, w...
Grand Canyons of Earth and Mars
"The Grand Canyon is a unique and spectacular land form. There is nothing quite like it anywhere else on Earth. But if we cast our gaze to distant horizons, we can find another similarly amazing location. The planet Mars has its own Grand Canyon, Valles Marineris. And it is interesting to compare Mars' canyon with ours."
https://www.youtube.com/watch?v=vkbap5IlMQI
FYI PO1 William "Chip" Nagel Maj William W. 'Bill' Price Sgt (Join to see) SCPO Morris Ramsey MSgt David Hoffman SP5 Mark Kuzinski SGT Steve McFarland PO3 Phyllis Maynard CW5 Jack Cardwell Lt Col John (Jack) Christensen LTC (Join to see) LTC Wayne Brandon Maj Robert Thornton CPT Paul Whitmer SSG Franklin Briant 1SG Steven Imerman 1stSgt Glenn Brackin SPC Nancy Greene
"The Grand Canyon is a unique and spectacular land form. There is nothing quite like it anywhere else on Earth. But if we cast our gaze to distant horizons, we can find another similarly amazing location. The planet Mars has its own Grand Canyon, Valles Marineris. And it is interesting to compare Mars' canyon with ours."
https://www.youtube.com/watch?v=vkbap5IlMQI
FYI PO1 William "Chip" Nagel Maj William W. 'Bill' Price Sgt (Join to see) SCPO Morris Ramsey MSgt David Hoffman SP5 Mark Kuzinski SGT Steve McFarland PO3 Phyllis Maynard CW5 Jack Cardwell Lt Col John (Jack) Christensen LTC (Join to see) LTC Wayne Brandon Maj Robert Thornton CPT Paul Whitmer SSG Franklin Briant 1SG Steven Imerman 1stSgt Glenn Brackin SPC Nancy Greene
(6)
(0)
8
8
0
Beautiful!
COL Mikel J. Burroughs Maj Marty Hogan TSgt David L. Alan K. CW5 Jack Cardwell Cynthia Croft Col Carl Whicker LTC Stephen F. Maj William W. 'Bill' Price SMSgt Lawrence McCarter CPL Dave Hoover Maj Bill Smith, Ph.D. Lt Col Charlie Brown SGT Steve McFarland Sgt John H. SFC Joe S. Davis Jr., MSM, DSL SFC Richard Williamson Sgt (Join to see) SPC Randy Zimmerman PO1 William "Chip" Nagel
COL Mikel J. Burroughs Maj Marty Hogan TSgt David L. Alan K. CW5 Jack Cardwell Cynthia Croft Col Carl Whicker LTC Stephen F. Maj William W. 'Bill' Price SMSgt Lawrence McCarter CPL Dave Hoover Maj Bill Smith, Ph.D. Lt Col Charlie Brown SGT Steve McFarland Sgt John H. SFC Joe S. Davis Jr., MSM, DSL SFC Richard Williamson Sgt (Join to see) SPC Randy Zimmerman PO1 William "Chip" Nagel
(8)
(0)
Read This Next
Continue with Facebook 
Continue with Google