A few days ago I received an email notice from CalSky that the International Space Station would pass directly in front of the Sun for my location. The station moves about 5 mi/sec. The duration of the transit would be 0.67 sec to cross the full disc of the Sun. Here it is. Don’t blink.
This view is slowed down to 1/4 as fast and is much easier to see. Do you hear the birds in the background?
Here is a composite of the station position each tenth of a second.