The nightside ionosphere, at latitudes away from the auroral zone, should have very little charged particle density, but it doesn’t. A new comprehensive study of satellite data explains why.
What happens when two plasmas with different temperatures overlap? The answer depends on a quantum effect that twists the waves as they ripple through the sea of electrons.
Scientists studying a 50–year–old mystery in the Earth's ionosphere have come up with their best explanation of it yet.