With cameras and telephoto tubes, an astronaut on the International Space Station observes the earth to capture beautiful scenes.
Astronaut Chris Cassidy pointed the camera and telephoto tube to Earth from the International Space Station. (Photo: NASA)
Countless grooves on the giant sand dunes appear in a photograph taken by American Mars Reconnaissance. (Photo: NASA)
The infrared image of a storm swept through the US on June 12. (Photo: NOAA)
A clear picture of the stones on Mars is taken by the Opportunity Autonomous Device. (Photo: NASA)
The constellation NGC 3766, about 7,000 light-years from Earth, is like sparkling diamonds. Astronomers discovered that the brightness of 36 stars in this constellation changed dramatically. They predict they are a kind of stars that people never knew. (Photo: ESO)
Mercury surface in a photo taken by the Messenger ship. (Photo: NASA)
