The second edition of the Solar Biennale has opened at Mudac in Lausanne, Switzerland. Exhibits include an artificial sun canopy, orbiting solar panels and a time capsule for plants. The Musée ...

Paris, France's capital, displays why it is known as the "City of Lights" in this photo taken from on board the International ...

This image features a deep field view of the Cassiopeia constellation immersed in the glow of ionized hydrogen gas, where the ...