 and microgravity science mission. I'm back in the space lab module at the moment. And behind me, you can see some of the crew members working on the experiments that we will be conducting today and over the next several days before we return July 7. These are microgravity experiments. Can you explain what that means to all of us? It's pretty much 50-50, what we call life science and microgravity science is the other half. The life science is a study on the effects of the human body being exposed to this environment. And behind me, you can see Dr. Bob Fursk is on one of the experiments, which is what we're wrestling machine. He is testing his muscle strength and helping him is Dr. Rick Lenahan. And we also are conducting simultaneously furnace operations and bubble drop operations to see how materials operate in microgravity. So it's both the material science and what we call human study science. NASA extended this mission, therefore making it historic in that you all are setting a record. Tell us a little bit about that. Well, I think I heard the machinery question. We did extend the mission, and it's primarily so that we can expose the human subjects to a longer period on orbit. And we'll also be able to conduct a little bit more of the microgravity material science. Go ahead. We like numbers in sequence, so we're just confirming that you meant to tell us flight model three for step two. That's a firm decision. That's louder than we are, thanks. Would you like us to make the vast changes or is that? We'll make the change from the ground, starting about a little bit before 2145 when we have to record on there. We're going to record some BDPU video. Now our perspective has changed, and we're viewing looking aft along the payload bay of the Shuttle Columbia. We see the vertical tail fin, orbital maneuvering system pod. And at the right part of our screen, we can see one of the payload bay doors. In the center of our view, we can see the Spacelab module. This is Mission Control Houston. This view inside the Spacelab science module. And Pedro, the screen now shows top Q to abort, so your data dump should be complete. Copy that. Great, thank you. Again, this view from the Spacelab science module showing payload commander Susan Helms currently in the process of setting up payload specialist Jean-Jacques Favier for some data takes with a leg muscle experiment, one of the life sciences experiments in the Spacelab module. Helms and Favier, along with Chuck Brady and Bob Thursk, have been conducting this experiment periodically throughout the course of this mission to test leg muscle and muscle mass ability to withstand long periods of exposure to the microgravity environment.