Elon Musk-owned aerospace company SpaceX's 'Mars Colonial Transporter' (MCT) can go "well beyond Mars", according to a tweet by the entrepreneur. The MCT is SpaceX’s personnel transport craft, designed to be used with SpaceX's Raptor rocket engine to transport the first humans to Mars, with an unmanned pilot launch planned for 2022, and the first manned flight slated for 2024.