Even CNN carried reports of the strange booms being reported all across the planet, and these booms coincided with the pass of an oblong interstellar object dubbed "Oumuamua", which wasn't noticed until it passed by the sun, received a gravity assist/course correction, and then swung past the Earth on it's outbound leg. I've seen no one put two-and-two together - did the object release probes or weapons packages as it passed? Hence the booms are the entry effects of these objects hitting our atmosphere?
Makes you wonder...