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This week the space agency confirmed the material has Earthly origins.
NASA believes the string is a piece of Dacron netting, a material used in thermal blankets.
“They noted that this particular piece of netting appears to have undergone significant unraveling/shredding, suggesting that it was subjected to strong forces.”
Previously a spokesperson had speculated the bundle was “a piece of cord from the parachute or from the landing system that lowers the rover to the ground.”
In the past, the Vikings Lander has measured Martian winds speeds of up to 113 kilometers (70 miles) per hour during dust storms.
The Perseverance rover is currently collecting the samples on Mars, but it regularly stumbles upon pieces of material left over from its descent.
On Sol 474 (June 23) the rover discovered a piece of mesh netting on the planet; a twisted piece of Dacron net material.
That came days after Perseverance found a piece of foil wedged in a rock.
The debris is believed to be part of the rover’s thermal blanket.
Perseverance touched down on the red planet on February 18, 2021.
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