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NASA Dates Teghaza 001 at 4.1 Billion Years Old

By Drooid · Oct 31, 2026 · How we work

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Summary

NASA-funded researchers determined Teghaza 001 formed over 4.1 billion years ago, ranking it among the oldest Martian meteorites.
The 800-gram rose-colored rock was discovered in Mali’s Sahara Desert in 2022.
Lee Saper, a NASA Ames scientist, said the meteorite records water-rock interactions and a possible atmospheric imprint.
The team used rubidium-strontium dating of zircon crystals to pinpoint the 4.1-billion-year age.

Summary

Perseverance determines its own position on Mars using the Mars Global Localization system.
The system achieves about 10-inch (25 cm) accuracy and computes location in roughly two minutes.
It creates a 360° orthomosaic from stereo cameras and matches it to HiRISE maps using census-transform comparison that ignores lighting.
NASA repurposed Ingenuity’s Snapdragon 801 processor, >100× faster than the rover’s computer, completing five-pair tests in 81 seconds on Earth.

History

In 1997 NASA’s Jet Propulsion Laboratory landed Mars Pathfinder in Ares Vallis, deploying the Sojourner rover and proving autonomous navigation at a cost of about $150 million. The mission’s low-cost, airbag-landing and obstacle-avoidance concepts became the template for later rovers, enabling Perseverance’s 2021 precision positioning using the same Mars localization principles today.

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In 1997 NASA’s Jet Propulsion Laboratory landed Mars Pathfinder in Ares Vallis, deploying the Sojourner rover and proving autonomous navigation at a cost of about $150 million. The mission’s low-cost, airbag-landing and obstacle-avoidance concepts became the template for later rovers, enabling Perseverance’s 2021 precision positioning using the same Mars localization principles today.

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