My job often requires me to get up for work VERY early. And quite often that means leaving the house for work an hour or two before sunrise.
This morning I went outside to see some amazing stars since it was a totally cloudless sky. Mars was in full view and on the verge of setting. But then I caught sight of something moving overhead from the Southwest. While I do regularly see air traffic on approach to Newark airport and some of the private aviation fields, there's not too much traffic at 4 AM. Plus, there were no blinking lights.
That's when I remembered seeing something about NASA's Spot The Station page
which they provide if you want to catch a glimpse of the International Space Station. You enter your basic geographic location and the app will let you know when you might be able to see the ISS passing overhead. I put in my own information, and sure enough the ISS was passing overhead at my location at 4:16 AM. I was genuinely surprised by how bright it was in the night sky. I had seen a satellite pass overhead once before at night over the east coast of Florida, but the ISS was far brighter and bigger than that previous sighting.