Abstract

A solar eclipse is a unique and exciting event that involves the Earth, moon, and Sun. During a solar eclipse, the moon covers the Sun entirely or partially. As a result, the moon temporarily blocks the sunlight coming toward Earth. Solar eclipses also change Earth’s atmosphere by affecting how close tiny particles called electrons are to each other. These electron density changes can be measured over various regions of the Earth by a group of satellites called the Global Navigation Satellite Systems (GNSS). In this article, we will tell you about changes in electron density seen during two recent solar eclipses. This is important because these changes can affect satellite-based navigation (like the GPS on your phone) and communication.

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