Mikrometeoroidien

Mikrometeoroidien are tiny particles of solid matter originating from outer space that enter Earth's atmosphere. These particles are typically microscopic, ranging in size from dust grains to pebbles. They are remnants from the formation of the solar system, often composed of rocky or metallic materials. Many mikrometeoroidien are believed to be fragments of asteroids and comets.

As mikrometeoroidien encounter Earth's atmosphere at high speeds, they experience significant friction. This friction causes them to heat up intensely, leading to ablation or vaporization. Most of these particles burn up completely long before reaching the ground, appearing as brief streaks of light, commonly known as meteors or "shooting stars." The smaller and less dense particles vaporize more readily.

Larger or denser mikrometeoroidien that survive atmospheric entry and reach the Earth's surface are called meteorites. However, due to their small size, the vast majority of mikrometeoroidien do not survive the journey. These particles contribute to the continuous deposition of extraterrestrial material onto Earth's surface, including oceans and landmasses. Studying mikrometeoroidien provides scientists with insights into the composition and evolution of the solar system.