Earth viewed from space
This online resource is a colour photograph of an astronaut doing a space walk against a background of the Earth viewed from space. It could be used to provoke student thinking (e.g., "Do you think the photographed part of the Earth is in day or night? Explain"). This image was taken over the Bering Sea, the northern extension of the Pacific Ocean bordered by Alaska to the east and Russia to the west. The bright blue of the sea is seen through expanses of white swirling clouds. The curvature of the Earth, only visible from space, is also shown in the image. Beyond Earth is the blackness of outer space.