Terminal World other brother, Opportunity, founded Fortune's Landing. This refers to the Mars Exploration Rover mission. The ages of characters, given in years, also imply that either they mature much more quickly than present-day humans, or that the year is much longer than 365 days (which if the planet is Mars will be the case since a Mars year is 687 Earth days). It is said that people once lived to be twice as long as now, which makes Mars such a good fit. There are also references to people in the past being similar in size to children; this could indicate
When We Left Earth: The NASA Missions When We Left Earth: The NASA Missions When We Left Earth: The NASA Missions (or NASA's Greatest Missions: When We Left Earth in the UK) is a Discovery Channel HD documentary miniseries consisting of six episodes documenting American human spaceflight, spanning from the first Mercury flights through the Gemini program to the Apollo moon landings, the Space Shuttle, and the construction of the International Space Station. It was created in association with NASA to commemorate the agency's fiftieth anniversary in 2008. It first aired on June 8, 2008, and concluded on June 22. Each airing consisted of two hour-long episodes.