.i“ * ^ / . . . . . ` `~

Curiosity‘s wheels… “Let’s see if these beefier wheels hold up better than Curiosity’s!” (tweet). Wikipedia: “After six years of use, the wheels are visibly worn with punctures and tears.” Same twitter thread indicates Curiosity’s wheels spelled something in the sand. Wikipedia: ” Each wheel has a pattern that helps it maintain traction but also leaves patterned tracks in the sandy surface of Mars. That pattern is used by on-board cameras to estimate the distance traveled. The pattern itself is Morse code for “JPL” (·— ·–· ·-··).”

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