If all goes as planned, that ICBM will blast out of a Russian nuclear sub deep in the Barents Sea on Tuesday with a payload out of science fiction: a solar sail called Cosmos 1. A solar sail is the only kind of spaceship that interprets "ship" as they did in the 16th century. The unmanned craft will glide through space on gossamer wings propelled only by the pressure of photons, or particles of sunlight. The technology offers the possibility of a cheaper and faster route to the heavens, and the private financing -- from Cosmos Studios of Ithaca, N.Y., which produces science films and DVDs -- has renewed hopes that government agencies won't be the only ticket to the stars. Although NASA, the European Space Agency, Russia and Japan have developed solar sails, none has flown them. Cosmos 1 will "blaze a new path into the solar system, opening the way to eventual journeys to the stars," says Lou Friedman, executive director of the Planetary Society, the private group that spearheaded the project. Six minutes after launch, the last stage of the three-stage rocket will fall away. Soon after, a motor will begin a 70-second burn to kick the spaceship into a near-polar orbit 1,300 miles up. After 37 minutes in orbit, two solar panels (not to be confused with the solar sails: the panels proembling a windmill. If it works, Cosmos 1 will be bright enough to see with the naked eye. (You can track it at http://planetary.org/solarsail/watch)
Sunday, June 19, 2005
Solar Sail
If all goes as planned, that ICBM will blast out of a Russian nuclear sub deep in the Barents Sea on Tuesday with a payload out of science fiction: a solar sail called Cosmos 1. A solar sail is the only kind of spaceship that interprets "ship" as they did in the 16th century. The unmanned craft will glide through space on gossamer wings propelled only by the pressure of photons, or particles of sunlight. The technology offers the possibility of a cheaper and faster route to the heavens, and the private financing -- from Cosmos Studios of Ithaca, N.Y., which produces science films and DVDs -- has renewed hopes that government agencies won't be the only ticket to the stars. Although NASA, the European Space Agency, Russia and Japan have developed solar sails, none has flown them. Cosmos 1 will "blaze a new path into the solar system, opening the way to eventual journeys to the stars," says Lou Friedman, executive director of the Planetary Society, the private group that spearheaded the project. Six minutes after launch, the last stage of the three-stage rocket will fall away. Soon after, a motor will begin a 70-second burn to kick the spaceship into a near-polar orbit 1,300 miles up. After 37 minutes in orbit, two solar panels (not to be confused with the solar sails: the panels proembling a windmill. If it works, Cosmos 1 will be bright enough to see with the naked eye. (You can track it at http://planetary.org/solarsail/watch)
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