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Rare Mars rock found in Sahara is over 4 billion years old
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Rare Mars rock found in Sahara is over 4 billion years old

Teghaza 001, a meteorite discovered in Mali’s Sahara in 2022, is at least 4.1 billion years old, making it one of the oldest pieces of Mars found on Earth. Zircon crystals inside the rock let researchers date it to the planet’s first 400 million years. Its minerals also show that water had affected the Martian crust at that time. So, this rare find offers a remarkable window into the early history of Mars.
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