The men from Apollo 11 might have spent only 21/2 hours outside the lunar module, and less than a day in all on the Moon's surface. But in that short space of time Neil Armstrong had joined - some would say even eclipsed - Columbus, Amundsen, Lindbergh, and the rest, in the pantheon of explorers whose exploits changed history.

Is it worth going back to the Moon? Here is the latest selection of Your Views: