LONDON — A California-based startup wants to launch a constellation of orbiting mirrors, which will beam sunlight to solar power plants to boost renewable electricity production after dark.

China has announced plans to create a huge solar power station in space that will allow the collection of solar energy which can then be beamed down to Earth. The enormous infrastructure ...

Nasa's Juno spacecraft, orbiting Jupiter and its moons, has detected the most powerful volcanic activity in the Solar System.

LWPT uses laser beams to transmit power wirelessly from orbiting satellites to surface ... and extreme temperature fluctuations. While solar power can provide energy for spacecraft during the ...