So two more things we used to marvel at when I was in School. The same Teacher that taught us the difference between Fusion and Fission, using nothing but a single piece of paper- also taught us about Cosmic Background Radiation which had recently been discovered (1964).
She just brought in a TV and put it between channels...and there you go. Snow. Much later in life, I learned that most of that Snow was "Noise" from electronic signals, the Sun, Solar Wind, Pulsars and a whole host of other sources. But about 1% was left over from the Big Bang, the so called: Cosmic Background Radiation. And you could see it.
If you put that same TV on the back of the moon, shielding it from all the Sun and Earth sources, you would still see that "snow" less than a percent, but coming from every direction. That's pretty cool.
Then remember those "3d" glasses you wore to the movies? One lens red, the other blue? It might surprise you to know those glasses were invented way back the twenties, and that the first '3d movie" came out in 1922.
They have a name, but I have forgotten it. What I haven't forgotten in Sister Mary Gertrude parading us all outside on a sunny day, going to a nearby park, and opening her little bag to give everyone a pair of those 3d movie glasses.

"Now look around at the light coming through trees, reflected in water, or anywhere but directly at the sun."

We did, and I still remember all the different colors. Then she said:

"What you are seeing is a small sample of the kind of energy you are subjected to every day. The air is not clear, it is filled with "radiation" of all kinds, and if you could see into the infrared, or the ultraviolet, you would be overwhelmed with the colors and display. Rays are what you would see, and all of them would be straight lines."

And maybe, just maybe, that is why I like Science to this day.