A major experiment in solar sailing is set to launch this month. Solar sailing is a method that can push, or propel, a vehicle through space. A spacecraft is attached to a large solar sail to capture wind pressure from sunlight. This pressure is the force for movement. A small spacecraft is set to demonstrate this technology after being launched from a rocket on June 22. The spacecraft, called LightSail 2, will launch from a Falcon Heavy rocket built by American aerospace company SpaceX. The rocket will launch from Florida’s Kennedy Space Center. LightSail 2 is a small spacecraft that weighs about five kilograms. It was designed by a not-for-profit group, The Planetary Society. Such small spacecraft are known as CubeSats. These provide a low-cost way for scientists, governments and private organizations to carry out space experiments.