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Ainsley: don't ring the buzzer. >> just ring it whenever you want. steve: i'm ready. >> are you guys ready? by the way 500 points for a connect answer, minus 250 for a wrong answer. steve: you made it too complicated. >> first question which nfl head coach has the most super bowl wins? >> bellecheck. >> yes, yes! >> who hit it first? >> it was me! >> i believe that i'm the official judge here, okay? >> that's probably the only one that i'm going to get right. >> sharing is caring? >> we can give it to shawn. >> question number two. which quarterback has the most touchdown passes in a single su...

On the space station. and, leroy, that's a big deal because this isn't like your air conditioning going out on earth. the temperature extremes on that space station are very different from what we experience on earth. >> well, that's right. the cooling is one of the challenges that we have to overcome on the space station. the temperature in tas can be plus or minus 250 degrees fahrenheit depending on whether you're in the sun or in the shade. the cooling system has to deal with that temperature extreme. the external cooling loop was the one affected by this module. it took down the american s...

Or minus 250 degrees either side of zero. we're talking about equipment that's been up for six years. so you don't know exactly how you're going to take this apart and put it back together again. we've worked on the scenario. we have an idea. and so all of this was designed relatively quickly. so i wouldn't say that nothing went right. i think it was characterized that way. actually, a lot of things went right because they were able to understand what's going on so that they could come back -- >> and everybody's safe and -- i guess that's part of the point. this is what nasa does for us, right...

It's about 200 miles or more over the earth right now. there is a space walk under way at the moment to fix a faulty cooling -- let's call it a heat transfer module because the heat or cold in space, if this thing is facing the sun, the hot side can get up to 250 degrees. the dark side can get down as low as minus 250 degrees. you have a 500-degree spread and this is what you need this cooler to do. it transfers heat or cold. and generates the right temperature. it broke on july 31st, an alarm went off that said there's something wrong wit. this is on the uts side of the space station. there a...

Basically. >> it's a transfer system that transfer -- you said, hot on one side, cool on the other side, it's the transferring of that heat from one side -- >> if you had a heat pump in your house, it's a similar concept but bigger. >> you're trying to make everything the same. and if it's not the same for long, what happens? what happens if you get really minus 250 and it's hundreds of pounds? this thing is just not light. you talked about your guest. >> let's go to him. leroy is here with us from houston. you are an astronaut. you have been on the space station. there are six people there ri...