Sahara Rock From Mars Is Over 4 Billion Years Old
A rose-coloured rock found in the Sahara in 2022 has been shown to be one of the oldest known meteorites from Mars. A NASA-funded study describes its age as over 4 billion years. The findings add to scientists' understanding of the Red Planet's early history.
Context
Context: Meteorites are rocks that fall to Earth from space, and more than a hundred known Mars meteorites are thought to have been knocked off the planet by ancient impacts. Studying them lets scientists examine Mars without a spacecraft.
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