Explainer: Russia mulls withdrawing from ISS
The ISS is built with the cooperation of scientists from five international space agencies — NASA of the US, Roscosmos of Russia, JAXA of Japan, Canadian Space Agency and the European Space Agency. Each agency has a role to play and a share in the upkeep of the ISS. Both in terms of expense and effort, it is not a feat that a single country can support
Hyderabad: After Russia invaded Ukraine, the US imposed sanctions on Russia including a ban on the transfer of technology and on Russian banks. Following this, the Russian space agency Roscosmos held that the State Corporation will not cooperate with Germany on joint experiments in the Russian segment of the International Space Station (ISS). Space is one of the last remaining areas where the United States and Russia continue to cooperate. Read here the impact of sanctions imposed on Russia on the working of ISS.
Russia’s role in maintaining ISS
The ISS is built with the cooperation of scientists from five international space agencies — NASA of the US, Roscosmos of Russia, JAXA of Japan, Canadian Space Agency and the European Space Agency. Each agency has a role to play and a share in the upkeep of the ISS. Both in terms of expense and effort, it is not a feat that a single country can support.
Russia’s part in the collaboration is the module responsible for making course corrections to the orbit of the ISS. Further, the Russian segment ensures that the space station’s orbit is corrected to keep it away from space debris, roughly 11 times a year. It also ferry astronauts to the ISS from the Earth and back.
Impact of Russia’s withdrawal
Due to its enormous weight and the ensuing drag, the ISS tends to sink from its orbit at a height of about 250 miles above the Earth. It has to be pushed up to its original line of motion now and then.
Russia’s withdrawing from its segment of the ISS cooperation spacecraft could affect correcting the orbit of the ISS. This meant the ISS could fall into the sea or on the land.
ISS would likely crash down on some country, but most probably not Russia itself. The orbit of the ISS does not fly over Russian territory mostly.
However, dropping of ISS poses a greater risk to regions that are closer to the equator. But this is only a probability, as it can move or disintegrate. In case of this eventuality, people in the ISS will be brought back, modules can be detached thereby making it much smaller which will ensure that it disintegrates before touching the earth.
All about International Space Station
The ISS is the most complex international scientific and engineering project in history and the largest structure humans have ever put into space.
The space station flies at an average altitude of 400 kilometers above Earth. It circles the globe every 90 min. at a speed of about 28,000 kph.
In one day, the station travels about the distance it would take to go from Earth to the moon and back.
Five different space agencies representing 15 countries built the USD 100-billion International Space Station and continue to operate it today.
Substitutes for Russia
There are right now two possibilities. SpaceX’s dragon module and Boeing’s Starliner can dock with the ISS. Until SpaceX’s dragon spacecraft came into the picture the Russian spacecrafts were the only way of reaching the ISS and returning.
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