SOLAR SYSTEM

Detailed explanation-1: -Of the roughly one million known asteroids the greatest number are located between the orbits of Mars and Jupiter, approximately 2 to 4 AU from the Sun, in the main asteroid belt.

Detailed explanation-2: -The belt is estimated to contain between 1.1 and 1.9 million asteroids larger than 1 kilometer (0.6 miles) in diameter, and millions of smaller ones.

Detailed explanation-3: -Asteroids are small, rocky, debris left over from the formation of our solar system around 4.6 billion years ago. There are currently over 822, 000 known asteroids.

Detailed explanation-4: -The asteroid belt, with its many small rocky bodies, looks in some ways like the whole inner solar system might have looked roughly 10 to 100 million years after the Sun was born. So why doesn’t the asteroid belt condense and form a planet? First of all, there’s not enough total mass in the belt to form a planet.

Detailed explanation-5: -There are over 30, 503 known near-Earth asteroids (NEAs) and over a hundred known short-period near-Earth comets (NECs). A number of solar-orbiting meteoroids were large enough to be tracked in space before striking Earth.