Now that its reflective sail has deployed fully open in orbit, the Advanced Composite Solar Sail System can be seen in the night sky from many locations across the world! Can you spot the solar sail?

A Caltech team is celebrating the world's first space-based wireless power transmission, and the first time detectable levels of power have been beamed down to Earth. The Space Solar Power Project ...

The project involves a 1,652-square-meter solar sail, developed jointly by NASA and NOAA, to improve space weather monitoring. Solar sails generate propulsion from sunlight, eliminating the need for ...