They are small and fast enough that you wouldn’t notice them. A 10cm diameter iron meteorite has a terminal velocity of about 600kph / 400mph / 160m/s. And rem

They are small and fast enough that you wouldn’t notice them. A 10cm diameter iron meteorite has a terminal velocity of about 600kph / 400mph / 160m/s. And remember it’s not glowing or red hot or followed by a plume of smoke, so you just won’t see it. So if “someone saw it” it’s either something else, or they are making it up.