Please get and watch The Secret Nasa Transmissions if you can. It is excellent. Show to everyone and enjoy!
There are plenty of wonderful examples of mass sightings and very clear images, with sometimes hundreds of disc shaped craft, and other shapes too.
So comical when you hear two astronauts fixing a satellite saying something like "there's something moving over there" and "just ignore it", as a massive disc passes and hangs around near the shuttle.

We will soon be calling them IFOs (Identified Flying Objects)!

In lak'ech