The Heavens Above site will give predictions of satellite passes based on location and time, and will predict brightness as well. For example, here's a guess at the 501 location for last night (you might have to set the date yourself). Looks like the SL-16 R/B satellite or the Resurs 01 rocket stage are good candidates; they're about the right time and direction. If you knew time, location, and/or direction more... Source: about 1 year ago

Heavens-Above (multiple platforms, lists satellites). Source: over 2 years ago

Also worth noting: https://heavens-above.com/main.aspx But this has a much nicer UI/UX! The street view rendering is particularly impressive. - Source: Hacker News / about 3 years ago

I have seen planes where they look like just flashes of lights until you get into a really dark place and can see the lights that are always on. I think they fly at higher altitudes for faster, more efficient travel. There are a couple of ways to check into this, though. Heavens-Above tracks satellites and flightradar24 has a playback function for times going back a week. Source: over 3 years ago

If they're all Apollo mission images like the one above, those have all been scanned from the original flight film (mostly by me) and archived. We have digitally archived ALL of the manned mission flight film. We're currently working on digitizing what we call "institutional" imagery, images shot by Earth bound NASA photographers. We're only up to 1968 so far so we have a long ways to go, but we'll scan them all... Source: about 1 year ago

You might also want to take a look through https://images.nasa.gov/. Source: about 1 year ago

Note: We pull these from https://images.nasa.gov, and are not endorsed by NASA in any way. We simply like space pics. Source: about 1 year ago

I think you'll be able to find some other footage on the NASA media library. Outside of that, you'll have to FOIA. Source: about 1 year ago

I meant NASA images from this site: https://images.nasa.gov/ not the NASA logo. Source: about 1 year ago