Washington: An astronaut aboard the International Space Station has clicked a stunning nighttime image of the border between India and Pakistan, showing one of the few places on Earth where an international boundary can be seen at night.

The winding border between Pakistan and India (R) is lit by security lights that have a distinct orange tone. The Pakistani port city of Karachi (L) appears as a bright cluster of lights facing the Arabian Sea, which appears completely black. Pic/NASA