Prior to 1957 only one object was blasted into space with enough velocity to stay up, it was a 1 ton "manhole cover" blasted into space by a sub kiloton nuclear test. That thing probably left the solar system. It appears geosynchronous orbiting objects have been captured on telescope slides over the years. The first geosynchronous orbiting man made object went up in 1959. It starts out weird and the scientists are like oh we should find a boring explanation for what we are seeing, but they don't and it only gets weirder and they only seem to find more of them the harder they look. It's going to be a lot harder to find them now with all the stuff people have put up there. These objects appear to be geosynchronous so in theory they could stay up there for 1,000 to 2,000 years. So 2 possibilities. 1 They were there and are still there. 2 They were there, but now they're not.
"600lb manhole cover blasted into space by a sub kiloton nuclear test." Ok, I had to look that up.. The fastest man-made object is a manhole cover that was blasted into space by an underground nuclear test (zmescience.com) and for the Debbie Downers No, a Nuclear Explosion Did Not Launch a Manhole Cover into Space (gizmodo.com)
What probably happened is the Shockwave hit the cap and shattered it. But, the containment pill the gadget was in didn't shatter so there may be a slightly melted, slightly radioactive manhole cover flying through interstellar space right now.
Most astronomical photos (plates) were exposed for minutes to hours with the telescope moved by a clockwork drive. A satellite would be a streak on said plate or the stars would be a streak with the satellite as a dot - like this
They found streaks. Could be scratches, but they figured out how to tell the difference between a streak and a scratch real quick. Others looked like stars but moved a little, those are the geostationary orbiting objects. They would have to be big to see them, as geostationary is up there about 22,000 miles.
Mor It looks like this is impossible phenomenon is growing legs. The Russians claim they didn't have anything up there in 1954. "Once you have eliminated the impossible, whatever remains, however improbable must be the truth"
Also, in the news The Pentagon announced it’s opening an office specifically to chase down reports of unidentified flying objects in a press release on Wednesday. It’ll be called the All-domain Anomaly Resolution Office (AARO) and will work to collect and analyze various reports of UFO activity from across America’s various federal agencies.
