EXPLORATION

After only a century of powered flight, we have escaped the confines of planet Earth, and forged our way into the vast expanse of space. Explore the past, present and future of space travel in Exploration.
	Future Spaceflight Investigate the options for future space travel. Will you set sails for the stars on a solar sail, or take a space elevator to the Moon?
	Mission Timeline Plot the history of human exploration of the Solar System, from the first Sputnik satellite to 21st century planetary landers and deep space probes.
	Time Travel Discussions of time travel start with the very fundamental: is it even possible? If you can overcome the 'grandfather paradox', all you then need do is harness a wormhole.