A Mars Meteorite Shows Evidence of a Massive Impact Billions of Years ago

Researchers at Australia’s Curtin University have discovered evidence of a massive impact on the Martian surface after 4.45 billion years ago. This may not seem like a surprising revelation Рafter all, we know that there were several large impacts on Mars, like Hellas and Argyre, and we know that large impacts happened frequently in the early solar system Рso why is this a big deal?

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