PIX4633164: Earth at the end of Permian - Ring arcs over the Permian Earth - A ring of rocks and dust is orbiting the Earth. The massive continent below is Pangee and the ocean to the west is Panthalassa. This is what Earth was supposed to look like at the end of Permian, about 260 million years ago, before the first dinosaurs appeared. This ring around the Earth was of earthly origin, constitutes debris thrown into orbit by collision with a meteorite or comet. Over time, these debris have either fallen or fallen back to Earth in a meteorite rain. A dusty ring arc orbits four thousand miles above Earth's equator. The massive continent below is Pangea and the ocean to the west is Panthalassa. This is how the Earth may have appeared during the end of the Permian period, a time just prior to the appearance of the dinosaurs, when continental drift was pulling Pangea apart into the seven continents we know today. 260 million years ago the Earth may have been host to ring arcs similar to the incomplete rings that currently circumscribe the planet Neptune. Unlike Neptune's rings, the ring arcs around the Earth were of terrestrial origin, debris thrown into orbit by a collision with a large meteorite or comet. The debris consisted of tiny pebbles that were once molten droplets of ejecta, long since cooled in the vacuum of space. The orbit of the ring arc would eventually decay, returning the debris back to Earth as a shower of meteorites. This debris is found on Earth's surface today in the form of dark, glassy objects known as tektites / Bridgeman Images
PIX4640538: Space debris - Artist view - Space debris - Artist view - Approximately 11,000 objects over 10 cm have been identified around the Earth. Most of these debris is in low orbit. The number of debris between 10 cm and 1 cm in diameter, greater than 100,000; particles less than 1 cm must exceed 10 million. Approximately 11,000 objects larger than 10 cm are known to exist around the Earth. The estimated population of particles between 1 and 10 cm in diameter is greater than 100,000. The number of particles smaller than 1 cm probably exceeds tens of millions / Bridgeman Images