According to media reports, the Planetary Society announced that it will launch a new solar sail spacecraft in 2015. The spacecraft is named LightSail-A. Its biggest feature is the use of optical power drive, which is the novel power of future interplanetary flight. Using the same hardware as LightSail-B, LightSail-B is not far away, mainly in low-earth orbit. It will be launched by SpaceX's "Heavy Falcon" rocket, but the rocket is still not yet available. get ready.
The LightSail-B does not enter the orbit as a direct load, it still needs another spacecraft support. This is the Prox-1 detector, which releases LightSail-B when the Prox-1 detector enters Earth orbit. The spaceship, then the sun sails. It is reported that we can even see the unfolding solar sails through professional observation tools. The light sails on the LightSail-B spacecraft reach 344 square feet, about 32 square meters, which is obviously much larger than some orbiting satellites. If the observation conditions are good, it is possible to capture the spacecraft on the orbit.
Before the LightSail solar sail project, scientists also carried out some solar sail research projects. The United States, Japan and Europe all have their own progress on the solar sail spacecraft. The Planetary Society believes that the solar sail spacecraft has great potential, compared with the traditional spacecraft. It can save a lot of fuel, the acceleration of light-pressure drive is very slow, and it takes a lot of time to increase the speed, but scientists think this is a very economical exploration program. If there is enough time, the investigation in the solar system can be completed.
The cost of the LightSail solar sail spacecraft is about $4.5 million, but the launch date may be affected by the SpaceX carrier rocket. Japan's solar sail detector is currently at the forefront of technology, and its solar sail spacecraft has completed interplanetary flight, flying. Grabbed Venus.
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