NASA posted a picture of the edge between India and Pakistan as...

NASA posted a picture of the edge between India and Pakistan as seen from outer space


An astronaut took the photograph and shows the north western section of India’s familiar outline picked out in glowing lights. The astronaut who took the picture was looking north across Pakistan’s Indus River valley.

Security lights that burn orange light the thread of orange that divides the two countries. The brightest spot observable is Karachi. The Indus Valley can also be dotted with lights. It is just one of the few international borders visible after dark. The Facebook post has been liked practically 50,000 times and has practically 9,000 shares.

“More than two millennia past, Alexander the Great entered the Indus plains in 327 BCE from the northwest.

Then he spent many months directing navy and his army down the length of the Indus valley shown in this view. To Mesopotamia (modern Iraq), Alexander then started back from Karachi that was near. By contrast, it takes the space station just three minutes to go this distance,” according to Nasa.

The photograph was taken with a Nikon D4 digital camera using a 28 millimetre lens. NASA shared the same image in 2011, which reveals the border zone as seen from the Himalayas.

Of the numerous bunches, the greatest are the capital cities of Pakistan Islamabad, and New Delhi, India.

(For scale, these metropolitan areas are approximately 700 kilometers or 435 miles.) Important highways linking the cities’ lines also stand out. More subtle, but still visible at night, will be the general outlines of the towering and partially cloud covered Himalayas to the north (image left).

An outstanding feature is the line of lights, with a clearly orange hue, snaking over the image’s center. It appears to be much more continuous and more glowing than most highways in the view. That is the fenced and floodlit edge zone. The fence is designed to deter smuggling and arms trafficking. A similar fenced zone separates India’s eastern border from Bangladesh (not visible).

This image was shot with a 16 mm lens, which provides the wide field of view, as the International Space Station (ISS) was monitoring towards the southeast across India. The ISS crew took the picture within a continuous chain of frames, each with a one-second exposure time to increase light set. However , this causes blurring of some earth attributes.

The distinct, glowing zone above the horizon (visible at picture top) is airglow, a phenomenon caused by excitation of atoms and molecules high in the atmosphere (above 80 kilometers, or 50 miles elevation) by ultraviolet radiation from the Sun. Part of the ISS Permanent Multipurpose Module and a solar panel array are visible at image right.

This nighttime panorama was taken by an astronaut while looking north across the Indus River valley in Pakistan. The picture was taken on September 23 having a Nikon D4 digital camera using a 28 millimetre lens.

The photo shows one of the few locations on Earth where an international border is seen at night. Security lights which have a distinctive tone that was orange light the winding edge between Pakistan and India.

Another photograph, that has been shared by Nasa in 2011, reveals the border zone looking southeast from the Himalaya.