Think about a mini van. That’s about the size of some satellites, but a good reference point. Some space junk is bigger and a whole lot is smaller.
Ever been in an airplane and looked out the window? That’s 40,000 feet (about 7-8 miles). Could you see a mini van on the ground from that distance? Nope.
Low Earth orbit starts at about 150miles up. The diameter of Earth is almost 8,000 miles. So to get a full picture of the Earth you have to be far away, and all the objects orbiting Earth (except the moon) are infinitesimally small in comparison.
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