For astronomy, we bought the premium version of the SkyView app.
https://www.space.com/skyview-review
Just the free version of this app is pretty incredible. When we looked at the premium version, we could see so many weird objects orbiting the Earth - old rocket launches from the 80s, decrepit satellites, old Russian spacecraft....
I found this article from NASA "Space Debris and Human Spacecraft." There's about 27,000 large pieces of space trash orbiting the Earth, some of it traveling at speeds of up to 15,700 miles per hour. It's actually a hazard to the International Space Station and any spacecraft that launches. The article said even paint flecks traveling at that speed can damage ISS or spacecraft.
Reading the article, it says there are about half a million objects the size of a marble (or bigger).
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