The haunting polar bear photo is one of 24 finalists for the Wildlife Photographer of the Year Nuveen People’s Choice Award ...

The latest blueprint for a permanent outpost on the Moon is not just about planting more flags in gray dust. It sketches a ...

The fastest way into the gaps between gigantic blocks of a broken-up glacier is by lowering instruments from above, through ...

While Mars may appear round, its true shape is subtly stretched and uneven, a product of its unique geological past and internal dynamics.