Famous Martian meteorite younger than thought

But still the oldest known sample of the Red Planet

By Lisa Grossman, 13:23 PM April 15, 2010

The oldest known Martian meteorite isn’t so old after all. Though it’s still the oldest chunk of Mars scientists have ever found, new research suggests the Allan Hills meteorite — officially known as ALH84001 — is about 400 million years younger than previously estimated.

A new analysis published in the April 15 Science pegs the meteorite’s age at a mere 4.091 billion years. Previously the meteorite was commonly accepted to have formed 4.51 billion years ago, when the planet’s surface was s...

Source URL: https://www.sciencenews.org/article/famous-martian-meteorite-younger-thought