If you're wondering what it takes to become a scientist whose job is to search for ET, Seth Shostak has something to say about that.
If you'd like to learn more, here are a couple of places you can start:
Fraknoi, A. Disney's Wonderful World of Space. 2007, Disney Publishing.
Fraknoi, A. & Schatz, D. When the Sun Goes Dark. (about eclipses) 2017, National Science Teachers Assn. Publishing.