What Is a Meteoroid?

Meteors are particles in the solar system that are as small as sand and dust and as large as boulders. After a meteor body enters the earth's (or other planet's) atmosphere, the stage that emits light and is seen on the path is called a meteor. Many meteors come from the same direction and appear successively over a period of time. They are called meteor showers.

When a meteor or asteroid enters the upper atmosphere, the molecules in the upper atmosphere encountered by the range will be freed to create an ion tail. These ionized wakes can persist for up to 45 minutes. Small, for example, grain-sized meteors often enter the atmosphere, and basically remain more or less continuously in specific areas of the upper atmosphere every few seconds

When the bright meteor flew overhead, many people reported hearing the sound. This seems impossible because the speed of sound is relatively slow. Any sound produced by a meteor in the upper atmosphere, such as a

Many of the meteors come from fragments formed by asteroids colliding with each other. although,

Meteors and asteroids both orbit near the sun, but the orbits are quite different. There are many meteors that could be

Even very small meteors can endanger spacecraft. Taking the Hubble Space Telescope as an example, there are already 572 tiny craters and cut areas.

The National Aeronautics and Space Administration (NASA) today announced that the Cassini spacecraft obtained direct evidence for the first time that a small meteor body broke into debris and rushed into the ring of Saturn. There are many very fast small stars in the solar system, and the planets are often hit by them. Meteors striking the rings of Saturn range in size from 1 cm to several meters. Researchers have spent years identifying the trajectories left by nine meteors in 2005, 2009, and 2012. Observations from the Cassini show that Saturn's rings play an effective role in monitoring the surrounding environment, including Saturn's internal structure and satellite orbits. For example, a thin but very wide ripple (19,000 kilometers through the interior of the ring) reflects a large meteor collision in 1983 ^[3] .