Q&A How does SpaceX Falcon compare to other rockets? SpaceX's new heavy-lifting rocket may not be able to launch as big a payload as some of its predecessors, but it's much lighter on the wallet. 2nd May 2018 Save 40% when you subscribe to BBC Focus Magazine!* Space Asked by: Ethan Vaughan, Cheshire © Raja LockeyRead more: Why was the Saturn V rocket painted black and white? What is the environmental impact of the SpaceX Falcon Heavy launch? Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun facts. Read more Q&As Could we use radiometric dating on ‘Oumuamua? Why is there a ‘wind chill factor’ in weather forecasts? Can humans hibernate? Why do astronauts wear white suits? Who really discovered Hubble’s Law?