this week, get ready for blast—off. we're filming a hot—fire rocket test in super—slo—mo, and it will blow you away. whoo! that went right through me! how do you choose your perfect shade? we've got an app to help you build your foundations. and shiona goes for a walk on the wild side. but you never know what's round the next corner. we've discovered something like 20,000 new paths in the short time we've been running the project already. have you ever wondered what happens when a satellite goes wrong? how would you know what was up? how would you find out if it had been sabotaged? well, that's what i've come to texas to find out. 30 seconds. we're at this 200—acre site to film a hot—fire test of a rocket engine.