The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered.

creating our Moon in the process and turning our planet into a glowing red ball of molten rock. However, this speck of zircon suggested that this fiery hellhole didn’t last for too long.

The oldest rock ever dated is a zircon found in the Jack Hills of Western Australia. Using radioactive dating, the scientists found that the rock could be as old as 4.4 billion years! US VP-Elect ...