The oldest crystal on Earth

The oldest pieces of rock on Earth – zircon crystals – were probably formed in the craters left by asteroids and not created by Earth’s plate tectonics, reports the Daily Mail.

Mark Jellinek, a professor in the earth, ocean and atmospheric sciences at UBC, was quoted in the story. According to Jellinek, events early in Earth’s history influenced the development of the planet’s magnetic field, plate tectonics and climate.