The last image taken by LightSail 2 before it re-entered the atmosphere. | Image: The Planetary Society
After three years in space, the Planetary Society’s LightSail 2 mission burned up in the atmosphere on Thursday, November 17th. During its mission, the crowdfunded spacecraft made 18,000 orbits of the planet using its giant reflective sail and demonstrated that controlled solar sailing is possible.
LightSail may now be over, but it has opened the door to the use of solar sailing in space exploration. “It doesn’t fit every situation, but now it gives another arrow in the quiver of options for types of propulsion you can use,” said Bruce Betts, Chief Scientist and LightSail program manager.
LightSail 2 operated in Earth orbit, while future solar sailing missions would likely be in deep space. That makes the requirements somewhat…
