A Rock from Mars

[image credit: NASA]
A rock formed on Mars 1.38 billion years ago. About 11 million years ago, an impact event on Mars ejected this rock from the Martian surface. It then circled the sun along with Mars and Earth for 11 million years. On June 28, 1911, it “rained” down to Earth along with a number of other meteorites near El-Nakhla in Egypt. The meteorites are now called the Nakhla meteorites.

I was born some 45 years after it crashed and was collected, and I now get to marvel about it. The simple fact that we even know this, and can establish this much detail about the history of this one rock is fascinating.

Dust in the wind, we are.


Multiple fragments of the Nakhla meteorite fell to Earth on June 28, 1911 near the village of El-Nakhla in Egypt. Its crystallization age has been determined to be 1.38 billion years.

About 11 million years ago, an impact event ejected this rock from the Martian surface, after which it traveled through space and crashed into our planet in 1911.

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