Earth's core has been leaking for billions of years
- Written by Hanika Rizo, Assistant Professor, Carleton University
Earth’s magnetic field protects and makes our planet habitable by stopping harmful high-energy particles from space, including from the Sun. The source of this magnetic field is the core at the centre of our planet.
But the core is very difficult to study, partly because it starts at a depth of about 2,900 kilometres, making it too deep to...