WASHINGTON (Reuters) - To put it mildly, this is one gem of a gem. Scientists using two different age-determining techniques have shown that a tiny zircon crystal found on a sheep ranch in western ...

The oldest known Earth stuff that remains on the surface of our planet is a mineral that's been called the "Time Lord" because it's so incredibly good at keeping geologic time. The mineral is zircon, ...

Water existed on Mars as early as 4.45 billion years ago, shortly after the planet formed from the leftover dust surrounding the young Sun. The proof lies in a minuscule zircon grain—smaller than the ...

Stonehenge, one of the most examined prehistoric structures globally, is located on Salisbury Plain in southern England. The long-standing debate has continued for decades regarding whether glaciers ...