World Wide Telescope is really cool
This isn't really related to anything I talk about, but I thought that Microsoft Research's World Wide Telescope is pretty fun: https://worldwidetelescope.org.
This is a free program you can install and then it lets you zoom in on celestial objects like a virtual planetarium. It zooms pretty well and expands to lots of hubble and other photos, so you can drill down pretty far on parts of the sky.