NASA tracks mammoth 200-foot asteroid hurtling towards Earth! Check details
Asteroids are ancient space rocks that are considered to be left over from the early formation of our solar system around 4.6 billion years ago. But what are these space rocks made of? According to NASA, asteroids vary in the composition of their core materials. Some asteroids are made up of clay and silicate, while others are made up of silicate materials and nickel-iron, according to NASA. These space rocks can not only provide valuable resources such as water, metals, and other minerals. Scientists also study…