On the 70th Anniversary of Carl Sagan’s Birth

Sir Ulli

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In the 1970’s, two soon-to-be-world-renowned popularizers of science crossed paths at Cornell University — where Carl Sagan was a professor of astronomy and Bill Nye was an engineering student. From his class with Carl, Bill came away with an abiding passion for planetary exploration. Two decades later, that passion led him to join the Board of Directors of The Planetary Society. Today, as we announce the launch date for the Cosmos 1 solar sail, Bill remembers Carl and his influence.

http://www.planetary.org/news/2004/nye_sagan.html

Most Visible Member of the Scientific Community of the Planet Earth

Carl Sagan is certainly the most visible spokesman of the scientific community of the planet Earth. Through the device they call television, fully five percent of the planet's four and one-half billion humans have actually seen his face and heard his words describing the nature of the Cosmos. His book relating these lectures is the best selling book on science in English, the planet's major language for such discussions.

Professor Sagan's efforts to sensitize his fellow Earthlings to the nature of their cosmic condition, coupled with the psychological relationship inspired by television, have given him unprecedented influence. He has used this influence to catalyze and disseminate a major study warning that warfare might produce totally disastrous climatic and ecological conditions even if a fraction of stockpiled atomic weapons were used. He has championed efforts to prevent the militarization of the near space area around the planet.

http://www.fas.org/sagan.htm

more Info to Carl Sagan who that not knows

http://www.bigear.org/vol1no2/sagan.htm

http://planetary.org/html/society/tributes/

http://www.csicop.org/si/2003-11/ann-druyan.html

http://www.carlsagan.com/

http://www.skeptic.com/04.4.sagan-tribute.html

http://en.wikipedia.org/wiki/Carl_Sagan

and Contakt

http://contact-themovie.warnerbros.com/cmp/int-druyan.html

Sir Ulli
 
Launch Date Set for Cosmos 1, The World's First Solar Sail Spacecraft

Announcement Coincides with the 70th Anniversary of the Birth of Carl Sagan, Co-Founder of The Planetary Society
By Susan Lendroth

Solar_Sail_decal_small.jpg

Image: The Planetary Society (C)

November 9, 2004

The Cosmos 1 team announced today that the world’s first solar sail spacecraft will be set for launch on March 1, 2005 from a submerged submarine in the Barents Sea. Cosmos 1 – a project of The Planetary Society – is sponsored by Cosmos Studios.

“With the spacecraft now built and undergoing its final checkout, we are ready to set our launch date,” said Louis Friedman, Executive Director of The Planetary Society and Project Director of Cosmos 1. “The precedent-setting development of the first solar sail spacecraft has had its ups and downs like a roller coaster ride, but now the real excitement begins.”

Cosmos 1’s mission goal is to perform the first controlled solar sail flight as the spacecraft is propelled by photons from sunlight. The Cosmos 1 launch period will extend from March 1 to April 7, 2005. The actual launch date will be determined by the Russian Navy, which directs the launch on the Volna rocket – a rocket taken from the operational intercontinental ballistic missile inventory.
...

more Info

http://www.planetary.org/news/2004/ss_launch_set_1109.html

http://www.space.com/missionlaunches/cosmos-1_update_041109.html

http://www.planetary.org/solarsail/

Sagan’s dream

The announcement today of the Cosmos 1 launch date coincided with the birthday of Carl Sagan, a co-founder of The Planetary Society. He served as President of the group until his death in 1996 and would have been 70 years old today.

Ann Druyan, head of Cosmos Studios, was Sagan’s professional collaborator and widow. As Cosmos 1 Program Director, she said that her husband would have been pleased regarding the upcoming solar sail mission.

In particular, using a converted weapon of mass destruction as a means to explore the Universe is a dream of Sagan, "that we would not be just cleaver with our science and technology, but that we would be wise too," Druyan related.

"Happy birthday Carl," Druyan said as she threw the switch that began the Cosmos 1 countdown clock.

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mfg
Sir Ulli
 
Cosmos 1 mit Sonnensegel vor Start

Die Raumsonde mit dem ersten Sonnensegel der Geschichte, genannt Cosmos 1, wird in ein bis zwei Monaten starten.

cosmos1.jpg

So soll die Raumsonde mit entfalteten Sonnensegeln aussehen (Bild: SpaceFlightNow)

Die letzten Vorbereitungen und Tests für diesen sehr wichtigen Start laufen bereits auf Hochtouren und liegen voll im Zeitplan. Auch der Projekt Manager Louis Friedman spricht von den letzten finalen Tests bevor es an den Start geht. Er und sein Team sind auf alle Herausforderungen, die auf ihm warten gut vorbereitet. In den letzten Monaten wurden letzte Arbeiten am Sonnensegel durchgeführt und schlussendlich an die Raumsonde Cosmos 1 montiert. Diese war bereits mehrere Monate vor dem Zeitplan fertig und wartete nur noch auf ihre großen und mächtig wirkenden Sonnensegel, die beim Start klarerweise noch zusammegefaltet sind. Jetzt gibt es nur noch die letzten Starttests mit der fertigen Sonde ehe es dann wirklich in den Weltraum geht.
...

Cosmos 1 mit Sonnensegel vor Start

mfg
Sir Ulli
 
header.jpg


Cosmos 1, the world’s first solar sail spacecraft, has shipped in preparation for a launch window that opens on June 21, 2005, traveling from the test facility of Lavochkin Association in Moscow to Severomorsk, Russia. The innovative and first-of-its-kind solar sail, a project of The Planetary Society and Cosmos Studios, will launch atop a converted ICBM from a submerged Russian submarine. It will deploy in Earth orbit and attempt the first controlled flight of a solar sail.

“Reaching this milestone puts us on the doorstep to space!” said Louis Friedman, Planetary Society Executive Director and the Cosmos 1 Project Director. “We are proud of our new spacecraft and hope that Cosmos 1 blazes a new path into the solar system, opening the way to eventual journeys to the stars.”

...

Cosmos1 Ships in Preparation for June Launcht

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Sagan’s dream

The announcement today of the Cosmos 1 launch date coincided with the birthday of Carl Sagan, a co-founder of The Planetary Society. He served as President of the group until his death in 1996 and would have been 70 years old today.

Ann Druyan, head of Cosmos Studios, was Sagan’s professional collaborator and widow. As Cosmos 1 Program Director, she said that her husband would have been pleased regarding the upcoming solar sail mission.

In particular, using a converted weapon of mass destruction as a means to explore the Universe is a dream of Sagan, "that we would not be just cleaver with our science and technology, but that we would be wise too," Druyan related.

"Happy birthday Carl," Druyan said as she threw the switch that began the Cosmos 1 countdown clock.

mfg
Sir Ulli
 
Sir Ulli schrieb:
aber das sollte eigentlich jeder Seti Cruncher oder Star Trek interessierte wissen...

;D Ja.
Bin zu faul, mir das jetzt alles durchzulesen. Weiß jemand, wie die Chancen stehen, daß das Sonnensegel wirklich durch Photonen auf bald-Lichtgeschwindigkeit gebracht werden kann? Oder ist das schon alles gesichert?

Eigentlich schön, die ersten Fahrzeuge, die weitere Strecken übers Waser zurücklegen konnten, segelten, und vielleicht werden wir bald auch das All "durchsegeln". *mitsegeln-will* ;)
 
The Planetary Society's Cosmos 1 Weblog: Bringing you Solar Sail Mission Events As They Happen!

Jun 14, 2005 | 09:15 PDT | 16:15 UTC
Launch minus 7 days 3 hours 30 min

Rehearsing the Launch

About a dozen people assembled here at POP pretty early in the morning for a simulation of the first hours of the Cosmos 1 mission, due to take place a week from now. These simulations are terribly important because they point out all kinds of logistical issues that need to be solved before launch day. Things like how the phone systems work (or don't work), how we are going to get word of the precise launch time to the guy who will be manning our temporary ground station out in the Marshall Islands, and stuff like that. One thing we learned pretty quickly was that we must not forget to synchronize our watches, or at least we must all have an accurate and precise UTC (Universal Time Coordinate) clock to refer to.
...

and a quote from Carl Sagan

sagan10.jpg


mfg
Sir Ulli
 
Zuletzt bearbeitet:
Jun 20, 2005 | 13:25 PDT | 20:25UTC
Launch minus 23 hours 20 min


The clock has just turned over.

Yikes. Less than a day left!

We are almost done with the rounds of TV interviews taking place in the POP room. Soon we'll lock it down and will be setting our operations into motion.

Here at The Planetary Society, the POP room is going to be in the capable hands of Jim Cantrell, another longtime friend of Lou's. He's just arrived from Utah, and is chafing at the bit to get these TV crews out of here and get going with preparations for our last rehearsal. More on that later...

http://planetary.org/solarsailblog/index_02.html

mfg
Sir Ulli
 
zweiter Versuch

Let's Build it Again!

A message from Louis Friedman,
Cosmos 1 Project Director and
Executive Director, The Planetary Society

Dear Supporters,

The Planetary Society and its Members took a bold and daring step in creating and launching the world’s first-ever solar sail spacecraft.

We were all incredibly proud. Indeed, in the hours following Cosmos 1’s historic launch from a Russian ICBM rocket (part of the Russian operational ballistic missile inventory) on a submarine just a few meters under the Barents Sea on June 21, 2005, we received thousands of comments like this one from a longtime Society Member:

“Keep up the faith, you guys. No complex feat of engineering ever goes smoothly! Even if the worst occurs, be proud of the fact that you were audacious enough to try. I have never been prouder to be a Member of the Society than today.”

You see, at first, everything seemed to go as planned -- we even got reports of a successful launch and first stage separation. But, as you probably know now, our solar sail never reached orbit. We’re still not certain what exactly happened, but we know the spacecraft was lost before it had the chance to test its revolutionary technology to harness the power of the Sun for spacecraft propulsion...

Lets Build it Again

sagan10.jpg


mfg
Sir Ulli
 
Cosmos 1 was—and is—a great effort, and one we are proud The Planetary Society tried to do. Our independent grassroots organization built and launched a spacecraft whose technology promises to one day open up interstellar travel. We shared the adventure of space exploration and captured the hearts of millions worldwide. To get as far as we did was—by itself—a great accomplishment, and The Planetary Society board, staff, and technical team, together with our partners at Cosmos Studios, are dedicated to trying again.
...

We now have the final Makeev report in hand, plus additional analyses from our Russian colleagues at IKI and American colleagues of The Planetary Society. We are comfortable with the conclusion that Cosmos 1 never made it to orbit because the launch vehicle failed. But we are not comfortable with the reason it happened: the Volna selected for our payload had not been upgraded to correct a known failure mode. We will not fly on a Volna again. We’ve learned that lesson—and it was certainly a hard one. We are now ready to find a new launch vehicle, establish better launch vehicle interfaces, and try again to fly the first solar sail spacecraft.

Full Story

http://www.planetary.org/solarsail/update_20050930.html


mfg
Sir Ulli
 
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