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Re: starship-design: Space Group Plans Solar Sailing Voyage
> From owner-starship-design@lists.uoregon.edu Tue Feb 27 16:20:55 2001
> From: "Andrew \"Daishi\" West" <andrew@hmm.u-net.com>
>
> Space Group Plans Solar Sailing Voyage
> Reuters
> Feb 26 2001 6:11PM
>
> WASHINGTON (Reuters) - In what sounds like a purely fantastic voyage, a
> private U.S. group that boosts planetary exploration said on Monday it plans
> to use the power of light to sail a giant windmill-shaped contraption
> through space.
>
> http://my.aol.com/news/news_story.psp?type=1&cat=0200&id=0102261811330216
>
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>From bounce-planetarysociety-1715@lists.planetary.org Tue Feb 27 01:34:50 2001
Delivered-To: uran-uranos@uranos.eu.org
Date: Mon, 26 Feb 2001 14:37:35 -0800
To: "planetarysociety" <planetarysociety@lists.planetary.org>
From: Charlene Anderson <charlene.anderson@planetary.org>
Subject: First Solar Sail Set to Launch
Dear Members and Friends of The Planetary Society--
It has been nearly a year since we last sent out an e-mail update.
But as you read on, I think you'll see it's not because we haven't
been busy! We're back, and with the most exciting announcement in
Planetary Society history.
We are about to launch the first solar sail mission ever -- and the
first space mission by a public-interest organization. Our goal is
to test sail deployment during a sub-orbital flight in April, and to
fly the Earth-orbital mission by the end of the year.
The funding for our mission comes from Cosmos Studios, a
science-based media and entertainment venture led by Ann Druyan, wife
and collaborator of Society co-founder Carl Sagan.
This is a bold venture -- the biggest, most ambitious project The
Planetary Society has ever undertaken. We hope you will join us as
we launch the first solar sail mission, and take the first step down
a path that leads to the planets -- and perhaps, one day, to the
stars.
Louis Friedman
Executive Director
The text of the official press release follows.
THE PLANETARY SOCIETY AND COSMOS STUDIOS ANNOUNCE COSMOS 1 THE FIRST
SOLAR SAIL SPACE MISSION
For News and Updates on this mission,
visit http://planetary.org/
Pasadena, CA. - February 26, 2001: The Planetary Society's Cosmos 1:
The First Solar Sail mission, sponsored by Cosmos Studios, is set to
test in April with the prime mission scheduled to launch between
October - December this year.
The deployment test flight will launch from a Russian submarine in
the Barents Sea and will be lifted into a thirty-minute sub-orbital
flight from a Russian Volna rocket, a converted ICBM. The main
mission, with the goal of first solar sail flight, will launch into
Earth orbit later this year, also from a Volna rocket.
Once in orbit, the solar sail spacecraft will be as bright as the
full moon (although only a point in the sky) and will be visible from
places on Earth with the naked eye. Images of the sail in flight
will be sent to Earth from two different cameras on-board the
spacecraft.
The mission represents the first private mission of space exploration technology and the first mission by a private space interest organization. It will explore and develop technology that could open the door to future flights throughout the solar system and beyond. The mission will be carried out by a unique, privately funded Russian-American space venture.
"This could be a pivotal moment for space exploration, said Louis
Friedman, Executive Director of The Planetary Society and Project
Director of Cosmos 1. "Solar Sailing is a grand adventure as well as
an important leap in technological innovation."
Space sailing is done not with wind, but with reflected light
pressure - pushing on giant sails, changing the orbital energy and
spacecraft velocity continuously. The sunlight pressure is powerful
enough to push spacecraft between the planets from Mercury out to
Jupiter. Beyond Jupiter, and out to the stars, space sailing can be
done using powerful lasers focused over long distances in space.
"The lasers themselves will be powered by solar energy - keeping the
spirit of solar sailing alive to other stars," added Friedman.
"The many special aspects of this first attempted solar sail flight -
Russian-American collaboration; use of weapons of war for launching
peaceful technologies for humankind's future; attempting a very low
cost, privately funded space initiative in a one-year time schedule;
realizing one of Carl Sagan's dreams; working with Ann Druyan,
Sagan's wife and long-time collaborator, who, together with Joe
Firmage, had the courage to fund this project - make us extremely
proud of what we have accomplished before we've even launched," said
Friedman.
"We have lingered long enough on the shores of the cosmic ocean. We
are ready at last to set sail for the stars," wrote Sagan and Druyan
in their television series, Cosmos.
"This is a Kitty Hawk moment to us. We feel as if we've been given
the chance to outfit the Wright Brothers' Bicycle Shop," said Ann
Druyan, CEO of Cosmos Studios, Inc. "We at Cosmos Studios are honored
to work with the brilliant scientists and engineers of many countries
brought together by The Planetary Society for one great purpose. We
are proud to be part of this historic mission, which is a critical
baby step to the stars. It's also emblematic of Cosmos Studios'
philosophy: to support good science, clean high technology and bold
exploration, and to engage the widest possible audience in the
romance of the adventure."
The low cost of this mission is made possible due to the Russians
ability to "piggy-back" on a successful program in developing an
inflatable re-entry vehicle. Once injected into Earth's orbit, the
sail will be deployed by inflatable tubes, pulling out the sail
material and then rigidizing the structure. The sail is constructed
into eight "blades" or "petals" - roughly triangular in shape. They
can be turned (pitched) like helicopter blades, and depending on how
they are turned, the sunlight will reflect in different directions.
This is how the attitude of the spacecraft is controlled and how the
sail can "tack."
Low cost is also made possible by use of the Volna rocket,
manufactured by the Makeev Rocket Bureau in Russia. The Babakin
Space Center is the prime contractor for the project - the company is
a spin-off organization of NPO Lavochkin, the largest manufacturer of
robotic spacecraft in the world.
The April launch will be a sub-orbital flight test of the deployment
of two solar sail blades. An inflatable re-entry shield is planned
to bring the pictures of the deployment back to a landing and
recovery site in Kamchatka. The actual solar sail flight will
commence from an 850 km circular orbit, with a launch being planned
in a window between October - December of this year. The sail will
be 600 square meters of aluminized mylar, constructed into 8 blades.
Solar sailing enables space travel without fuel. Applications from
space weather satellites that can hold position against the force of
gravity, to interplanetary shuttles carrying cargo between the
planets and the asteroids and comets are all part of the solar
sailing future. By diving in close to the Sun, future solar sails
will achieve enormous velocities enabling rendezvous with any solar
system object, or, as mentioned above, a flight to the stars.
Cosmos 1 is staffed by a world team of Americans and Russians. The
Planetary Society website has a dedicated section to this mission,
which includes an animation of the mission, spacecraft details,
updates and news releases. It will allow the world public to follow
and participate in this mission. This site is open to the public and
is located at http://planetary.org.
This will be the first space mission that will utilize a website to
continuously interface the sequence of the mission with the general
public, allowing continued and uninterrupted public participation.
Additional information will also be available at the Cosmos Studios
website located at http://carlsagan.com.
The Planetary Society is headquartered in Pasadena, California,
U.S.A. The organization was co-founded by Carl Sagan, Bruce Murray
and Louis Friedman in 1980 to advance the exploration of the solar
system, and to continue the search for extraterrestrial life. With
100,000 members in over 140 countries, the Society is the largest
space interest group in the world.
Cosmos Studios creates science-based entertainment that seeks to
thrill and engage the broadest possible audience through the
convergence of television, cinema and the Internet. The company
creates programming that makes news, entertains, uplifts and inspires
humankind's quest for knowledge, our understanding of cosmic
evolution, and our place in its great story. Cosmos Studios is based
in Los Angeles, California and is managed from Ithaca, New York.
# # # # # # # # #
********************
Charlene M. Anderson
Associate Director
The Planetary Society
charlene.anderson@planetary.org
http://planetary.org
office: 626-793-5100
fax: 626-793-5528
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