A California startup wants to use giant orbiting mirrors to reflect sunlight onto Earth after dark. The first test satellite ...

A scuba diver until age 79, Georgette Apol Douwma photographed reefs around the world and then transformed her images into dazzling kaleidoscopic designs. Photographer Georgette Apol Douwma’s ...

That’s only one problem. Your immune system also has an adaptive system of specialized immune cells and antibodies that attack and destroy invading microbes. This system remembers what those intruders ...

A company called Reflect Orbital wants to illuminate the Earth after sunset with orbital sky mirrors, raising alarm bells.