The objects were going from 70000 feet to 50 feet in less than 2 seconds.That breaks all known laws of physics and is considered impossible with our current knowledge.secret tech we have been hiding for 70 plus years?Doubtful.This is one case you need to read up on before commenting.Whole naval and airforce teams have come forward to back this up with video, radar, eye witness accounts and is now backed officially by the navy itself, it was taken so seriously the president himself was briefed on it and interviewed twice about it, to which he gave vague and cryptic answers.
"all known laws of physics" lol. Umm, they get revised about every 50 years. The "ether theory" of space existed until the late 1800's, when the Michelson-Morley Experiment proved it was BS.
When Niels Bohr proposed the quantum explanation of the spectral lines for a gas discharge tube, that changed the entire base of Newtonian mechanics that was about 250 years old.
When Einstein introduced the Special Theory of Relativity that changed everything we knew about time and space.
When Cerenkov radiation was discovered, Einstein's absolute speed limit of light was proven to not always be true. The list goes on. Quantum tunneling, wave particle duality, etc.
An object that enters our atmosphere and behaves in ways we do not understand is simply an unidentified flying object. Until a species lands and says hi- no, there aren't interstellar boogeymen piloting them, lol Makes for great fantasies for a bored populace though...