Have you heard? The Buzz is back! Once again we're asking some of the biggest questions in science and engineering; and once again we've enlisted the help of our incredible academics. Getting us off to a stellar start is Dr Ciara McGrath, Lecturer in Aerospace Systems in the Department of Mechanical, Aerospace and Civil Engineering, and – very impressively – the Institution of Engineering (IET) Young Woman Engineer of the Year. Here she tackles a question that's astronomical in both senses of the word: Are we entering a new space age?