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#151 2022-04-11 08:28:21

GW Johnson
Member
From: McGregor, Texas USA
Registered: 2011-12-04
Posts: 4,923
Website

Re: New 2020 Mars Rover based on MSL

From the 4-11-22 “Daily Launch”
Sharp Rocks Force Curiosity To Turn Back
CNET News (4/8) reported that NASA’s Curiosity rover encountered “knife-edged rocks” on the Greenheugh Pediment on Mars. NASA Jet Propulsion Laboratory Curiosity Project Manager Megan Lin said, “It was obvious from Curiosity’s photos that this would not be good for our wheels. It would be slow going, and we wouldn’t have been able to implement rover-driving best practices.”

Looks to me like two similar rovers tell exactly the same tale:  aluminum wheels are a bad idea in the rocks,  especially sharp rocks.

GW


GW Johnson
McGregor,  Texas

"There is nothing as expensive as a dead crew,  especially one dead from a bad management decision"

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#152 2022-04-11 19:13:54

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 26,305

Re: New 2020 Mars Rover based on MSL

The second part of the equation for break down is the rovers speed and mass for movement. The fatigue is sort of like ringing a bell over and over with how it fractures the wheel surface.

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#153 2022-04-22 04:58:43

Mars_B4_Moon
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Registered: 2006-03-23
Posts: 4,310

Re: New 2020 Mars Rover based on MSL

Perseverance captures video of solar eclipse on Mars
https://www.spacedaily.com/reports/Pers … s_999.html

NASA’s Ingenuity Mars helicopter continues to defy expectations
https://nypost.com/2022/04/20/nasas-ing … ectations/

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#154 2022-06-13 07:06:37

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 4,310

Re: New 2020 Mars Rover based on MSL

Mars Ingenuity helicopter has a dead sensor, but it may still work

https://www.cccam7.com/free-cccam-cline … ccam7-com/

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#155 2022-06-19 07:10:51

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 26,305

Re: New 2020 Mars Rover based on MSL

NASA's Perseverance Studies the Wild Winds of Jezero Crater

9201_PIA25290-web.gif

wow the level of wind that is all over the place....

26784_PIA25361-web.gif

insight could use this to clean its panels...amazing....

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#156 2022-09-01 21:22:40

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 26,305

Re: New 2020 Mars Rover based on MSL

Mars_B4_Moon wrote:

NASA Gives a Detailed Analysis of all the Landing Debris Perseverance Has Found on Mars
https://www.universetoday.com/157400/na … d-on-mars/

Images of EDL Debris
https://mars.nasa.gov/mars2020/mission/ … dl-debris/
Written by Justin Maki, Imaging Scientist and Mastcam-Z Deputy Principal Investigator at NASA's Jet Propulsion Laboratory

Ingenuity, nicknamed Ginny, is a small robotic coaxial rotor helicopter operating on Mars as part of NASA's Mars 2020 mission along with the Perseverance rover,
Ingenuity Helicopter Marks 30 Flights on Mars
https://www.extremetech.com/extreme/339 … ts-on-mars

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#157 2022-09-02 18:49:11

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 26,305

Re: New 2020 Mars Rover based on MSL

NASA's Perseverance Found Green Sand on Mars — Here's What That MeansAA11pkl8.img?w=534&h=267&m=6

Olivine-rich rocks are pristine and considerably easier to examine and analyze.

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#158 2022-09-15 19:57:07

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 26,305

Re: New 2020 Mars Rover based on MSL

Perseverance rover finds organic matter 'treasure' on Mars

The rover’s mission, which began on the red planet 18 months ago, includes looking for signs of ancient microbial life. The site of the delta makes Jezero Crater, which spans 28 miles (45 kilometers), of particularly high interest to NASA scientists. The fan-shaped geological feature, once present where a river converged with a lake, preserves layers of Martian history in sedimentary rock, which formed when particles fused together in this formerly water-filled environment.

Currently, the rover contains 12 rock samples that could have preserved these telltale biosignatures. “The rocks that we have been investigating on the delta have the highest concentration of organic matter that we have yet found on the mission,” said Ken Farley, Perseverance project scientist at the California Institute of Technology in Pasadena.

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