All About Space

HOW THE MOON ENCOUNTERS EARTH’S MAGNETOTAIL

1 Creating the magnetotail

The magnetosphere is an area around our planet that is dominated by its magnetic field. It protects Earth from harmful levels of radiation from the Sun. When the solar wind collides with the magnetosphere, it’s deflected around the planet. This forms a lengthy tail.

2 The plasma sheet

Trapped inside the magnetotail, which is about 1,000 times Earth’s radius, is the plasma sheet. It contains hot charged particles, including electrons. There are almost no solar wind protons inside the magnetotail

3 Orbiting Moon

The Moon travels through the magnetotail and its plasma sheet. At this stage, it’s protected from the solar wind. Since water is still formed on

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