An ISS transit is where the International Space Station passes between you and either the Sun and the Moon. You can take video of the Moon transits with just a powerful zoom. The Sun transits are basically the same, except you need a solar filter to block out the light, and will just get a silhouette.
With the ISS whizzing around the globe, there's an ISS transit somewhere pretty much all the time. But for a given location they are relatively rare to pass directly overhead. However, if you enter your location in the ISS Transit finder it will show you upcoming transits that are nearby, often just a short drive away.
The one above is happening tomorrow and is very close to my house. So I'm going to set up my camera in a suitable location and try to record it. It will be in daylight, so the ISS will actually appear quite bright. My plan is simply to record it with my P900 at 1080p/60 (this is certainly an instance when a P1000 would work better, more magnification and 4K video). I'll start recording a minute before the flyover time.
I've put this in the "Flat Earth" as it's a great way of verifying the reality of the ISS, and hence its orbits around the globe, and the scale of the distance to the sun and moon.
Tune in tomorrow! In the meantime, has anyone else done this?