Current Missions and Future Trajectory While still in its relative infancy, solar propulsion has already seen successful deployment. Furthermore, this technology enables missions that are simply impossible for chemical propulsion.
Solar Sail Deorbiting Techniques: Extending Solar Propulsion's Reach at End of Mission
How Photon Pressure Drives Spacecraft At its core, solar propulsion relies on the physical principle that light carries momentum. The Japanese IKAROS mission, launched in 2010, was the first spacecraft to successfully demonstrate solar sail propulsion in interplanetary space.
This allows the spacecraft to not only move away from the Sun but also to tack, similar to a sailboat moving against the wind. When a photon, although massless, strikes a surface—whether a solar sail or a laser array—it imparts a tiny amount of energy and, consequently, momentum.
Solar Sail Deorbiting Techniques: Leveraging Photon Pressure for End-of-Mission Control
Looking ahead, the potential applications are vast. Interstellar probes, such as Breakthrough Starshot, aim to use ground-based lasers to accelerate gram-scale spacecraft to a significant fraction of the speed of light.
More About Solar propulsion
Looking at Solar propulsion from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on Solar propulsion can make the topic easier to follow by connecting earlier points with a few simple takeaways.
