Posted on Aug 28, 2021
APOD: 2021 August 28 - Mars Rock Rochette
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Good morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Mars Rock Rochette." We return to the Perseverance rover today for a look at a particular rock on the floor of Jezero Crater dubbed "Rochette." I can see why they are interested in obtaining a sample from Rochette: it looks different. The color, the way it is fractured, and the extent that the image indicates a level of crystallization (especially in the grey areas closest to the front wheel of the rover). Visible crystals in rock form when both temperature and pressures are sufficient for them to do so. One type of rock we see on Earth that contains visible crystals is granite.
The rock looks somewhat granitic (to me), which would be an odd finding on the floor of an ancient lakebed/crater. On Earth, granites are igneous intrusions into continental crusts. So if they do wind up taking a sample, and that same has a high content of silicon and aluminum (the top two metallic oxides in most terrestrial granites), that could open up a new chapter in a Martian mystery for the planetary geologists to unravel.
The rock looks somewhat granitic (to me), which would be an odd finding on the floor of an ancient lakebed/crater. On Earth, granites are igneous intrusions into continental crusts. So if they do wind up taking a sample, and that same has a high content of silicon and aluminum (the top two metallic oxides in most terrestrial granites), that could open up a new chapter in a Martian mystery for the planetary geologists to unravel.
APOD: 2021 August 28 - Mars Rock Rochette
Posted from apod.nasa.gov
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Maj William W. 'Bill' Price good day my friend, " rest assured, NOBODY DOES IT BETTER FROM ABOVE". Thanks for sharing. Today's Astronomy Picture of the Day (APOD) is titled "Mars Rock Rochette." Have a blessed day my friend.
SGT David A. 'Cowboy' Groth CPL Douglas ChryslerPO1 William "Chip" Nagel SGT Charlie Lee Maj Marty Hogan SGT (Join to see) Sgt (Join to see) PO1 H Gene Lawrence Lt Col Charlie Brown PVT Mark Zehner SSG Michael Noll Lt Col John (Jack) Christensen COL Mikel J. Burroughs SPC Mark Huddleston PO1 Lyndon Thomas Cpl Vic Burk SGT James Murphy SGT Mark Anderson PO1 Tony Holland
SGT David A. 'Cowboy' Groth CPL Douglas ChryslerPO1 William "Chip" Nagel SGT Charlie Lee Maj Marty Hogan SGT (Join to see) Sgt (Join to see) PO1 H Gene Lawrence Lt Col Charlie Brown PVT Mark Zehner SSG Michael Noll Lt Col John (Jack) Christensen COL Mikel J. Burroughs SPC Mark Huddleston PO1 Lyndon Thomas Cpl Vic Burk SGT James Murphy SGT Mark Anderson PO1 Tony Holland
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Really cool share from the Martian landscape, looks like a stoneax head in the dirt there Maj William W. 'Bill' Price , have a great Saturday afternoon sir.
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Album: Taming The Tiger - 1998
Thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy Picture of the Day (APOD) is titled "Mars Rock Rochette."
Image: Mars Rock Rochette - Image Credit - NASA, JPL-Caltech
APOD Background
"Explanation: Taken on mission sol 180 (August 22) this sharp image from a Hazard Camera on the Perseverance rover looks out across a rock strewn floor of Jezero crater on Mars. At 52.5 centimeters (21 inches) in diameter, one of the rover's steerable front wheels is at lower left in the frame. Near center is a large rock nicknamed Rochette. Mission planners don't want to avoid Rochette though. Instead Perseverance will be instructed to reach out with its 2 meter long robotic arm and abrade the rock's surface, to determine whether it has a consistency suitable for obtaining a sample, slightly thicker than a pencil, using the rover's coring bit. Samples collected by Perseverance would be returned to Earth by a future Mars mission."
Joni Mitchell - Man From Mars
https://www.youtube.com/watch?v=ih_WcrfW40o
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter LTC (Join to see) MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. PO1 William "Chip" Nagel SPC Michael Terrell SSG Franklin BriantGySgt Thomas Vick CPL Douglas Chrysler Lt Col John (Jack) Christensen GySgt Jack Wallace MSgt James Clark-Rosa SGT Charlie Lee SMSgt Mark Venzeio Cpl Vic Burk SFC Ralph E Kelley SGT Randell Rose
Image: Mars Rock Rochette - Image Credit - NASA, JPL-Caltech
APOD Background
"Explanation: Taken on mission sol 180 (August 22) this sharp image from a Hazard Camera on the Perseverance rover looks out across a rock strewn floor of Jezero crater on Mars. At 52.5 centimeters (21 inches) in diameter, one of the rover's steerable front wheels is at lower left in the frame. Near center is a large rock nicknamed Rochette. Mission planners don't want to avoid Rochette though. Instead Perseverance will be instructed to reach out with its 2 meter long robotic arm and abrade the rock's surface, to determine whether it has a consistency suitable for obtaining a sample, slightly thicker than a pencil, using the rover's coring bit. Samples collected by Perseverance would be returned to Earth by a future Mars mission."
Joni Mitchell - Man From Mars
https://www.youtube.com/watch?v=ih_WcrfW40o
FYI COL Mikel J. Burroughs SMSgt Lawrence McCarter LTC (Join to see) MAJ Dale E. Wilson, Ph.D. Maj Bill Smith, Ph.D. PO1 William "Chip" Nagel SPC Michael Terrell SSG Franklin BriantGySgt Thomas Vick CPL Douglas Chrysler Lt Col John (Jack) Christensen GySgt Jack Wallace MSgt James Clark-Rosa SGT Charlie Lee SMSgt Mark Venzeio Cpl Vic Burk SFC Ralph E Kelley SGT Randell Rose
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LTC Stephen F.
Rest in peace David Bowie. born as David Robert Jones
David Bowie's last performance ever, "Life On Mars"
https://www.youtube.com/watch?v=THz5x0dS5fc
FYI SPC Woody Bullard SFC William Farrell SPC Michael TerrellSPC Michael Duricko, Ph.D PO1 H Gene Lawrence Maj William W. 'Bill' Price PO2 (Join to see) SGT Steve McFarland 1LT Voyle Smith SPC Nancy GreeneLTC David Brown COL Lisandro Murphy MSgt Dale Johnson Maj Robert Thornton MGySgt (Join to see) SGT (Join to see) PVT Mark Zehner SPC Michael Oles SR CSM Charles Hayden CSM Bruce Trego
David Bowie's last performance ever, "Life On Mars"
https://www.youtube.com/watch?v=THz5x0dS5fc
FYI SPC Woody Bullard SFC William Farrell SPC Michael TerrellSPC Michael Duricko, Ph.D PO1 H Gene Lawrence Maj William W. 'Bill' Price PO2 (Join to see) SGT Steve McFarland 1LT Voyle Smith SPC Nancy GreeneLTC David Brown COL Lisandro Murphy MSgt Dale Johnson Maj Robert Thornton MGySgt (Join to see) SGT (Join to see) PVT Mark Zehner SPC Michael Oles SR CSM Charles Hayden CSM Bruce Trego
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LTC Stephen F.
Bowie ~ LAST PERFORMANCE OF HEROES
David Performing At The Hurricane festival 25.6.2004 His Last Full Concert Performance. This channel never has & never will carry advertisements the only ads...
Rest in peace David Bowie. born as David Robert Jones
Bowie ~ LAST PERFORMANCE OF HEROES
https://www.youtube.com/watch?v=lX2dKL70z38
FYI SSG Michael Noll SFC Bernard WalkoSGT Denny EspinosaSP5 Dennis LobergerMGySgt (Join to see)SFC Ralph E KelleySSG Robert WebsterSGT Randell RoseSGT James MurphySgt Jim Belanus CPT (Join to see)SSG Byron HewettPFC Craig KarshnerMSgt Dale Johnson SGT (Join to see) SGT David A. 'Cowboy' Groth PO1 William "Chip" Nagel LTC Jeff Shearer LTC Greg Henning
Bowie ~ LAST PERFORMANCE OF HEROES
https://www.youtube.com/watch?v=lX2dKL70z38
FYI SSG Michael Noll SFC Bernard WalkoSGT Denny EspinosaSP5 Dennis LobergerMGySgt (Join to see)SFC Ralph E KelleySSG Robert WebsterSGT Randell RoseSGT James MurphySgt Jim Belanus CPT (Join to see)SSG Byron HewettPFC Craig KarshnerMSgt Dale Johnson SGT (Join to see) SGT David A. 'Cowboy' Groth PO1 William "Chip" Nagel LTC Jeff Shearer LTC Greg Henning
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