That will be at the forefront of the next generation of space exploration. Our Science Correspondent Pallab ghosh has the story. Back at home we all have a lot of work to do but from here, earth sure looks like a perfect world. Historic words for an historic moment. Out comes the first private Sector Astronaut to walk in space. Silhouetted in earths orbIt, billionaire Jared Isaacman paid millions of dollars for this experience. Earlier, he was suIting up, as were the other three crew members. The capsulte has no air lock, so the entire spacecraft is in the vacuum of space once the doors opened. Then, the all important checks to make sure that the spacesuIts dont leak. Theyd been upgraded for the spacewalk, stronger and more flexible. The helmets have a heads up display, so they see how well their bodies are coping. Then the air is taken out of the capsule, so the pressure inside matches whats outside. The hatch opens, and isaacman exIts the spacecraft. Theres not much to do outside apa