The majority of asteroids that scientists have formally identified reside between the orbits of Mars and Jupiter. Scientists call this wide swath of space the asteroid belt, and though it contains millions of objects, the combined size of all of the asteroids in the belt is smaller than the Earth’s moon.Know More
Scientists estimate that about 200 asteroids in the belt exceed 60 miles in diameter. By contrast, 750,000 asteroids of about three-fifths of a mile in diameter are thought to reside among the larger ones. One of the largest objects in the asteroid belt is classified as a dwarf planet. Named Ceres, this large asteroid is thought to represent about one-third of the total mass of the asteroid belt.
Many asteroids have moons that orbit them, although none are large enough to contain an atmosphere. As far as scientists can tell, asteroids are not capable of supporting life. Occasionally, the gravity of a large planet perturbs the orbit of an asteroid. This can cause an asteroid to crash into a planet or moon. Approximately 65 million years ago, an asteroid hit the earth with enough force to kill most of the life on the planet. Scientists scan the skies for such large meteors, hoping to spot them before they impact Earth.Learn more about Comets & Asteroids
The primary reason that planetary scientists study asteroids, comets and meteoroids is because it helps them to understand the early formation of the solar system. Additionally, it is important to understand what happens when asteroids or meteoroids collide with the Earth or other planets, as such events have been important factors in the history of the planet.Full Answer >
According to the Center for Meteorite Studies at the Arizona State University, meteorites are believed to come from the asteroid belt between Mars and Jupiter. Hubblesite defines a meteorite as a meteor or a piece of meteor that makes it through the atmosphere and lands on earth.Full Answer >
The main asteroid belt is found between Mars and Jupiter. It is between 2 and 4 astronomical units from the sun. This means it is two to four times as far from the sun as the Earth is.Full Answer >
The asteroid belt between Mars and Jupiter is thought to be left over from a planet that was unable to form due to the gravitational influence of Jupiter or the remains of a planet that was destroyed in a collision. The belt is composed of small bodies of rock and ice of various sizes.Full Answer >