This is Einstein's Telescope. I geeked out over it a little.
The boys took turns working in the space station repair simulator.
Soyuz Descent Module. I can't believe three men fit in there.
We all took turns in the Mercury Capsule as well. Again, I can't believe a man in a space suit fit in there. It's a tight fit for a long trip.
There are three working telescopes at Chabot. This is the smallest one, with an eight inch lens. They call it Leah.
This one is called Rachel, and it has a 20 inch lens.
This telescope was actually used by the observatory to help NASA determine the exact position of Apollo 13 on its way home, so that they would be able to determine how long the final thruster burn should be to position them properly to re-enter the atmosphere safely. It was the only US telescope that wasn't having problems with cloud cover at that moment.
These pieces of styrofoam make it easy to see how big the lenses of their three telescopes are in comparison to one another.
The boys put on their lab coats to do some work in Bill Nye's Lab.