100 Year Space Craft Pondered

Reply Sat 1 Oct, 2011 11:29 am
Warp drives. Artificial gravity. Terraforming planets. These concepts might sound as though they're ripped from the pages of science fiction, but they're the topic of serious scientific presentations at a symposium this weekend sponsored by the Pentagon's think tank.

Called the 100-Year Starship Symposium, the public event runs Friday through Sunday in Orlando, Fla. For three days, scientists from universities, NASA centers and private institutions will discuss far-out ideas for building a spaceship to visit another star.

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..Humans have sent probes to planets and asteroids throughout our solar system, and one should leave the solar system next year (though it took the craft, Voyager 1, more than 30 years to get that far). But we've never come close to propelling a human-made object as far as another star. [Gallery: Visions of Future Human Spaceflight]

The nearest star to the sun, Alpha Centauri, is more than four light-years away, meaning something traveling at light speed would take four years to reach it. Any object with mass, such as a spacecraft, would have to travel significantly slower, according to the laws of conventional physics.

But that's not stopping NASA and the Defense Advanced Research Projects Agency, the agency responsible for some of the early innovations that led to the Internet, from imagining such a mission. The two agencies have teamed up on a $1 million project called the 100-Year Starship Study to begin contemplating technologies and organizational strategies that could enable an interstellar mission to launch within 100 years.

"The 100-Year Starship is about more than building a spacecraft or any one specific technology," DARPA officials wrote in a statement. "Through this effort, DARPA seeks to inspire several generations to commit to the research and development of breakthrough technologies and cross-cutting innovations across myriad disciplines."

The symposium this weekend will feature notable scientists such as Jill Tarter from the SETI Institute and former NASA astronaut Mae Jemison, as well as science-fiction authors such as Stephen Baxter, Robert J. Sawyer and Elizabeth Bear. Industry leaders such as Virgin Galactic President and CEO George Whitesides will also present at the symposium.Panels will include debates on the merits of fusion vs. nuclear thermal propulsion, as well as the social and psychological implications of sending humans on a one-way mission to the stars. Religious and philosophical aspects of interstellar travel will also be discussed.

But a note to would-be space travelers: It's too soon to sign up for the trip.

"Neither DARPA nor NASA are actually building a 100-Year Starship," DARPA officials wrote. "We are planting seeds for an organization. Consequently we are not taking starship crew applications at the present time."

Check back at Space.com for senior writer Clara Moskowitz's live reporting from the scene. You can follow Space.com senior writer Clara Moskowitz on Twitter @ClaraMoskowitz. Follow Space.com for the latest in space science and exploration news on Twitter @Spacedotcom
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Reply Sat 1 Oct, 2011 06:53 pm
Hmmm, do you think folks can afford to build this fancy dancy new spaceship in today's economy? Shocked
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Reply Sun 2 Oct, 2011 12:12 am
What a waste of time and money. Everything possible has already been invented, and it's time to quit squandering our money on stuff that just ain't gonna happen.
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Reply Sun 2 Oct, 2011 07:58 am
All the worthwhile inventions were already in use by the middle ages. The rest is all frills and exploitation of the masses.
Reply Sun 2 Oct, 2011 08:12 am
Except X rated movies, of course.
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