Interstellar space travel is manned or unmanned travel between stars. The concept of interstellar travel in starships is a staple of science fiction. interstellar travel is conceptually much more difficult than interplanetary travel. Intergalactic travel, or travel between different galaxies, would be even more difficult.
Many scientific papers have been published about related concepts. Given sufficient travel time and engineering work, both unmanned and sleeper ship interstellar travel seem possible, though both present considerable technological and economic challenges that are unlikely to be met in the near future, particularly for manned probes. NASA, ESA and other space agencies have been engaging in research into these topics for several years, and have accumulated a number of theoretical approaches.
Energy requirements appear to make interstellar travel impractical for generation ships, but less so for heavily shielded sleeper ships.
Other articles related to "interstellar travel, travel, interstellar":
... Main article Interstellar travel Many scientific papers have been published about interstellar travel ... Given sufficient travel time and engineering work, both unmanned and generational voyages seem possible, though representing a very considerable technological and economic ... Hence an interstellar ship would be much more severely exposed to the hazards found in interplanetary travel, including hard vacuum, radiation, weightlessness, and ...
... as a possible first destination for interstellar travel ... Nuclear pulse propulsion might enable such interstellar travel with a trip timescale of a century, beginning within the next century, inspiring several studies ...
... The 100 Year Starship (100YSS) is the name of the overall effort that will, over the next century, work toward achieving interstellar travel ... The effort will also go by the moniker 100YSS ...
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