Want to become a rocket scientist?

For the next few days you can get the ebook “How to be a rocket scientist” for free, by an engineer who has been one. As Hoffstadt correctly notes,

We are still very far from having all of the answers and seeing all of the possible technologies that can help humans travel through the air and space, and to live beyond our planet Earth. There are important questions to ask, problems to solve, and things to build. We haven’t figured everything out yet and don’t know where the next ideas and accomplishments are going to come from. In other words … we need more rocket scientists! [emphasis in original]