In this video we look at solar panels that are used in spacecrafts, from satellites to rovers.
Solar panel is a great way of powering satellites for long duration (decades) of time. They recieve untrammelled light from the sun.
Solar panels are being used in spacecrafts for 60 years. Initially silicon panels were used but they are later replaced by Gallium Arsenide. Today Multi-Junction solar cells are used because of their high efficiency which is almost double to that of terrestrial solar panels