Watch this space: Chandrayaan-3, Luna-25 race against backdrop of Indo-Russia cooperation

This partnership lasted longer than the Soviet Union itself. In 2004, the two countries signed a protocol to boost cooperation in space. This included the development of the GLONASS navigation system and the launching of Russian GLONASS satellites by Indian rockets.

In fact, India’s first tryst with a moon landing was supposed to happen in partnership with Russia. Chandrayaan-2 was initially supposed to be a collaboration between India and Russia. Under the initial plan, ISRO would provide the rocket and the Orbiter module while the lander and rover modules were to be developed by Roscosmos.

The mission was initially supposed to launch in 2011, shortly after Chandrayaan-1, which happened in 2008. At the time, ISRO did not have the capability to build its own lander and rover.

Back then, the kind of lander and rover that Russia was planning to send with the Chandrayaan-2 mission developed issues during other missions. Because of this, Roscosmos had to make design corrections. But the new design brought in more problems—it turned out to be incompatible with Chandrayaan-2. This meant that Russia eventually pulled out of the collaboration.

Despite the collaboration’s unfortunate conclusion, ISRO eventually developed its own lander and rover. This task did take a few years. The combination of issues with the partnership and the development of the rover and lander meant that Chandrayaan-2 could only take off in 2019. And when the mission did launch, it only ended as a partial success. The orbiter component of the mission continued to work well while the lander did not make it to the lunar surface in one piece.

Even as recently as 2021, the governments of India and Russia signed an agreement to protect technologies and cooperate in space. A joint statement prepared by the two countries agreed to increase cooperation between ISRO and Roscosmos in various domains, according to Carnegie India. This included human spaceflight, satellite navigation, development of launch vehicles and planetary exploration.

Also, four astronauts who will be part of India’s first crewed space mission—Gaganyaan—have been trained in Russian facilities.

But going forward, there is a good chance that this cooperation will be as important to Russia as it is to India. Luna-25 is being carried out without any equipment or help from the European Space Agency (ESA). This is because ESA cut ties with Roscosmos after Russia’s invasion of Ukraine.

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Only three countries have managed to complete a soft landing on the Moon in history—the United States, the Soviet Union, and China. Since Russia’s relations with the first entity on the list have soured, having another friend in space would be important for the country.