An astronaut has captured jaw-dropping pictures of cities from space. American spaceman Don Pettit picks out the bright lights of urban areas from 257 miles up on the International Space Station.

Pettit pointed a camera toward one of the space station's windows and caught the comet as it paid the astronauts a visit. "It is totally amazing to ... that formed in the outer solar system ...

The European Space Agency's Huygens probe hitched ... a spacecraft had ever landed on a moon in the outer solar system. Huygens took some amazing photos and collected plenty of data, which ...

NASA Astronaut Don Pettit shared his stunning photographs from his view miles above the Earth on the International Space ...