Feb. 1 (UPI) — Mars may be home to some of the oldest volcanoes in the solar system. New evidence suggests the Red Planet has been home to volcanic activity for at least 2 billion years.
The evidence is a small Martian meteorite discovered in Africa in 2012. The rock was named Northwest Africa 7635.
Scientists has studied many Martian meteorites over the years. Most arrived on Earth’s surface roughly 1 million years ago, when a large object collided with Mars, dislodging significant amounts of rock — much of it volcanic.
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