As an impartial, nongovernmental group, The Planetary Society was capable of forge connections with Soviet scientists in the course of the Chilly Conflict. After the autumn of the Soviet Union, Russia transformed a few of its submarine-launched missiles into satellite tv for pc launchers beneath the title Volna (Russian for “wave”). In 1999, the Society’s Russian colleagues got here to them with a proposal: Work with us to construct a photo voltaic sail and we’ll fly it on the Volna. Thus was born Cosmos 1, the world’s first photo voltaic sail spacecraft.
Cosmos 1 was geared up with eight triangular photo voltaic sails held inflexible by inflatable booms roughly 15 meters (50 ft) lengthy. Every sail could possibly be individually tilted, permitting the spacecraft to maneuver and monitor the Solar. The Society’s contribution to the mission was funded by members in addition to Cosmos Studios, a enterprise by Carl Sagan’s widow, Ann Druyan.
A 2001 check flight utilizing a scaled-down model of Cosmos 1 ended with a Volna mishap. The total-scale Cosmos 1 launched in 2005, however its Volna rocket failed 82 seconds after launch, sending the photo voltaic sail plummeting into the ocean.
NASA reentered the photo voltaic crusing sport in 2008 with NanoSail-D, a know-how demonstration aimed toward deploying a photo voltaic sail from a CubeSat — a small, modular spacecraft the scale of a loaf of bread. Like Cosmos 1, the flight of NanoSail-D ended prematurely as a result of a rocket mishap when its SpaceX Falcon 1 failed to achieve orbit.
For a time, NASA thought-about giving a NanoSail-D flight spare to The Planetary Society. That effort stalled, so the Society determined to develop its personal comparable mission known as LightSail.
Like NanoSail-D, the spacecraft can be primarily based on a three-unit CubeSat. Not like NanoSail-D, LightSail can be geared up with angle management, cameras, and two-way communication. And in contrast to Cosmos 1, LightSail can be a mission undertaken solely by The Planetary Society, not simply as a associate.
Beginning in 2009, the LightSail program was funded by members, donors, and 23,500 Kickstarter backers. The preliminary spacecraft improvement was accomplished in 2012, and in 2015, LightSail 1 hitched a free journey to orbit aboard an Atlas V rocket. It efficiently examined the deployment of its sails and beamed a picture of these glowing sails residence to Earth.
