Casual Interplanetary Travel
Currently it takes about 20 million dollars of government support to get a single human being into Low Earth Orbit, and only robots have gone beyond the moon. Aside from the massive cost there are supply considerations because getting just about anywhere takes months if not years. However, in many stories involving space (and nearly all outside of literature), even if interstellar travel is hard, interplanetary travel is easy, taking a couple days at most and within the range of at least an upper-middle class person cost wise.
In context, it's not that bad; Historically, all four of Christopher Columbus
' voyages combined
didn't cost 20 million - and once you reach orbit
, you're halfway to anywhere
. Once the infrastructure was in place, the original American immigrants made their journeys on personal funds
- so there's no reason that the phenomenon shouldn't repeat itself by the 2050's so long as we get a "space Mayflower" by the 2020's. Better get to work on that.
of Casual Interstellar Travel
. Sometimes there's minimum range limitation that makes only interstellar transit easy (say, wormholes), sometimes interstellar travel is still sublight or very difficult, but this is easy. At the other end of the spectrum, see Interplanetary Voyage
and Generation Ships
Anime and Manga
- Subtle examples can be found in the Gundam series, which likes to use Lagrange points around the Earth for its colonies, with the furthest ones at the L2 point (where the Principality of Zeon is located) being past lunar orbit. The L3 point (where Mobile Suit Gundam begins for example) is on the opposite side from the moon at any given time. Travel between these points, or from one to the Earth or the moon, takes a few days at most. Going out past the immediate area of lunar orbit, however, takes several months.
- Aria has people from Earth regularly visiting Mars (now called Aqua) for business or pleasure. A girl the main cast meets returns in the first season just to go to a New Years festival.
- Lyrical Nanoha series is a bit vague about its cosmology but it seems that "dimension", "world", and "planet" mean the same thing in the setting. Spells like Dimensional Transfer are readily available to Magitek mages, and in Nanoha ViVid, the heroes take a shuttle to another planet like one would take a bus to another town.
- Cowboy Bebop has this, with the constantly broke protagonists nevertheless able to afford to operate an interplanetary fishing(!?) ship. This is facilitated by hyperspace, however.
- In the Honor Harrington series, travel between planets is casual to the point of day trips to other planets by middle class people being possible (with favorable orbital positions). Midway through the series Honor commutes for a time between the Naval Academy on Manticore and her home planet of Sphinx.
- In Alastair Reynolds' novels, interstellar travel is very arduous, as he is strict about there being no FTL travel in his stories. However, interplanetary travel is portrayed as relatively casual.
- In the Foundation series, travel between planets throughout the galaxy is fairly easy and accessible to most people in the Galactic Empire.
- Averted in The Childrens Crusade by Robert Reed. The three superpowers attempt manned landings on Mars - all of which fail. The American ship manages to reach Mars, but finds their lander inoperative - they leave back for Earth, while systems on the ship fail and kill 4 of the 7 crew. The European Union launches two ships. One of the landers explodes on entry, and the other lands - but is bogged down in extremely fine Martian dust, causing it to sit at an odd angle, making it impossible to lift off again, stranding the crew on the surface. The Chinese build an elaborate, highly efficient ship powered by a fusion rocket, which explodes from impurities in its reaction chamber as it leaves Earth's orbit.
- Averted in the more hard sci-fi novels of Stephen Baxter, particularly Voyage.
- Firefly has this, as The Verse is confirmed to take place in one large, multi-star system.
- In the Canadian show Starhunter, interplanetary travel is semi-realistic but casual; push on the gas and you go faster, but it does take a couple of days to get from the moons of Jupiter to Mars. Interstellar travel exists (via Hyperspace), but is very new, cutting edge, rare, and dangerous.
- The Stargate Verse has various shuttle-craft (Al'kesh, Puddle-Jumpers, etc) that make it a breeze to fly from a planet's surface to say, the nearby moon. Not that every galactic Joe can own one, since they're mostly in the hands of organized militaries, empires, and crime syndicates, but it's not unheard of for a particularly enterprising individual to have their own private spacecraft.
- For Earth specifically this is averted for several seasons until we have time to build our own ships, despite long since having become an interstellar power due to the SG teams and the stargates enabling Casual Interstellar Travel.
- From what we see of Lister's past in Red Dwarf, interplanetary travel is quite casual, with people living on several different planets and moons and often moving or having vacations to another. However, interstellar travel is not casual, and requires being sealed in stasis as it takes years.
- Or at least it wasn't casual in Lister's home period. By the time Kryten left the solar system things must have become a bit easier, since his ship crash landed a long way from Earth (almost as far out as Red Dwarf itself got in 3,000,000 years.)