Billionaire Jared Isaacman loves space and wants it to be for everyone, not just astronauts. He went on private space missions and even walked in space. Now, he may lead Nasa. But some worry about the changes he might bring, especially in using private companies for space travel. Nasa has had cost overruns in the past, and Mr. Isaacman wants to make things more efficient. However, some are concerned that working closely with Elon Musk's SpaceX may create a monopoly in the space industry. Changes may be coming to Nasa, but it's important to find a balance between innovation and tradition. The future of space travel is exciting, and people like Jared Isaacman are leading the way.