Imagine being an advanced civilization with technology we can't even comprehend, chilling 2049 light years away, and suddenly your alien astronomers detect a rogue manhole cover breaking your planet's atmosphere at hypersonic speeds. Plot twist: it's just human engineering gone hilariously wrong! This references the 1957 Pascal-B nuclear test where a steel manhole cover was accidentally launched at an estimated 125,000 mph (potentially 5-6 times escape velocity). Scientists believe it might be the fastest human-made object ever and could have actually escaped Earth's gravity. Somewhere in the cosmos, there's probably a confused alien filling out paperwork about "unidentified flying infrastructure."