Here some experiments are being done in the microscience glove box. It's a box that we use so we can work inside with materials that are toxic or dangerous to us. Here we see some echo scan equipment.
Astronauts need to be versatile. I was trained as an engineer and a military pilot. Nevertheless, I was trained in my astronaut career to do echo scans, for example. I did scans on Bob, and that was quite interesting for me to do.