How old is the oldest meteor ever found on earth?

Geologists and atmospheric scientists have just unearthed the oldest meteorites ever found on our planet. They're 2.7 billion years old and paint a striking picture of Earth's atmospheric history. read more

Geologists and atmospheric scientists have just unearthed the oldest meteorites ever found on our planet. They're 2.7 billion years old and paint a striking picture of Earth's atmospheric history. Oddly, they reveal hints that Earth had an oxygen-rich atmosphere at a time many scientists still agree the planet was still nearly devoid of oxygen. read more

An artist's illustration expression of how a large meteorite impact in the sea might have looked in the first second of the impact. Scientists are unsure if the oldest meteorite crater on Earth, a 3 billion-year-old crater in West Greenland, was actually covered in water at the time. Image released June 28, 2012. read more