Dozens of asteroids orbit throughout the galaxy, but the most famous are those that have impacted the Earth. Asteroids that do are best known by the major craters they leave behind. The Vredefort crater was created by an...
Asteroids have an average speed of 25 kilometers per second or roughly 15.5 miles per second. This measurement comes from scientists who monitor asteroids in earth's vicinity.
The average speed of an asteroid is 25 kilometers per second. Depending upon the size and velocity of an asteroid, a collision with Earth could have catastrophic effects.
Most meteors that enter the Earth's atmosphere are pieces of asteroids from the asteroid belt. The meteors were formed more than 4 billion years ago during what is thought to be the early stages of the solar system.
Comets and asteroids are similar in that both are the remains of the creation of the universe around 4.5 billion years ago, and both can move toward Earth. That is where their similarities end.
The three primary types of asteroids are C-type, M-type and S-type. Asteroids are categorized according to their composition. C-type asteroids are carbonaceous, M-type asteroids are metallic and S-type asteroids are sili...
Meteors are mostly made up of rock and iron, and they come from either asteroids or comets. When fragments of an asteroid or a comet break off, they are called meteoroids while they travel through space. When a meteoroid...