Photos taken by an astronaut from the International Space Station show a night view of Siberia and Lake Baikal, illuminated by ice and snow. Lake Baikal is the world's largest and deepest freshwater lake, famous for its long history and rich biodiversity. The image also highlights bright city lights, oil fields and parts of the Trans-Siberian Railway. Lake Baikal is a UNESCO World Heritage Site for its unique fauna.

On January 24, 2024, astronauts on the International Space Station took photos of the Siberian night scene.

Siberia and Lake Baikal at night

In January 2024, an astronaut aboard the International Space Station (ISS) captured this night view of Siberia and the frozen Lake Baikal. Ice and snow illuminate sparsely vegetated land, while forested areas appear darker. Several of the station's solar arrays are clearly visible among the dark horn-like objects at the top of the image.

Lake Baikal is the world's largest freshwater lake, 640 kilometers (395 miles) long, and the deepest lake, reaching a depth of 1,700 meters (1 mile). Scientists also believe Lake Baikal is one of the oldest lakes on Earth, having been formed about 25 million years ago, according to UNESCO.

Bright city lights and industrial center

The brightest places in the image are cities, including the large industrial city of Irkutsk and its surrounding industrial towns. Irkutsk is located along the Angara River, which flows from Lake Baikal and feeds several reservoirs, including the snow-covered Bratsk Reservoir. The sporadic orange-red light spots in the upper left corner of the picture are lights related to oil fields. The city lights in the lower right corner of the image are towns in northern Mongolia.

Trans-Siberian Railway

This image contains important parts of the Trans-Siberian Railway. The railway passes through the city of Zima and follows a straight line through a series of towns to Irkutsk. From there the railway skirts the southern end of Lake Baikal and then heads east through the major towns of Ulan-Ude and Chita. The railroad eventually reached the Pacific Coast.

UNESCO World Heritage Site

UNESCO declared the lake a World Heritage Site, stating: "Its age and isolation have resulted in some of the richest and most exotic freshwater fauna in the world, and are of special value to evolutionary science. The Baikal seal is the only freshwater seal species currently known, and biologists continue to study how it became isolated in Lake Baikal."

Other photos taken by astronauts show the area during daylight hours, including this photo of Irkutsk and the Angara River. Detailed photos of the Baikal ice cap can be seen here and here.

Astronaut photo ISS070-E-80639 was taken with a Nikon D5 digital camera on January 24, 2024, with a focal length of 24 mm. Photo courtesy of the International Space Station Crew Earth Observation Facility and the Johnson Space Center Earth Science and Remote Sensing Division. This image was taken by Expedition 70 crew members. Images are cropped and enhanced to improve contrast and remove lens artifacts. The International Space Station Program supports the laboratory as part of the International Space Station National Laboratory to help astronauts take photos of Earth that are most valuable to scientists and the public and make these images freely available on the Internet.

Compiled from /ScitechDaily