So, let's do a little experiment. Let's say we reverse Earth's rotation. What then? Well, you'll change a lot more than just the sunsets. This may seem like a ridiculous scenario at first.

So, let's do a little experiment. Let's say we reverse Earth's rotation. What then? Well, you'll change a lot more than just the sunsets. This may seem like a ridiculous scenario at first.

As well as a few temporary reversals, the Earth's magnetic field – just like the Sun – can flip over long timescales. During the Brunhes–Matuyama reversal, the magnetic north could have been ...