The appeal is straightforward. Solar panels on Earth depend on weather. They shut down at night, sulk under clouds, and fade ...

A model of a solar system first and foremost with a small projector built in, the Science Can Solar System Planetary Projector is a great educational tool for kids.

Bothell, Wash.-based Portal Space Systems shows off the lab where its solar thermal propulsion system will be developed.

Space-based solar power has the potential to reduce Europe's need for land-based renewable energy by up to 80%—a potential ...