How far does Earth’s magnetotail extend beyond the Moon’s orbit?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Diagram of Earth's atmosphere layers-troposphere, stratosphere, mesosphere, and thermosphere-showing how temperature and air pressure change with increasing altitude, with key features like the ozone layer and pressure percentages at various heights. — Ionosphere and magnetosphere The layers of Earth's atmosphere, with a yellow line showing the air temperature at various heights.

Earth’s magnetotail extends significantly beyond the orbit of the Moon. On the nightside of the planet, the terrestrial magnetic field is stretched into a giant tail that can reach distances in excess of 1,000 Earth radii.1

This extensive reach occurs because, on the nightside, the forces associated with the magnetic field and the solar wind act in parallel, allowing the structure to extend far into space.1