For its Final Trick, Chandrayaan-3 Brings its Propulsion Module to Earth Orbit

Chandrayaan-3 propulsion module in front of the Moon.
Chandrayaan-3 propulsion module in front of the Moon. Image credit: ISRO, NASA

On August 23, ISRO’s Vikram lander detached from its propulsion module and made a soft landing near the Moon’s south pole region. The lander then deployed its Pragyan rover, and for two weeks the endearing little solar-powered rover performed marvelously, detecting water ice and characterizing the makeup of the lunar regolith before succumbing to the darkness and cold of the lunar night.

But since the rover mission ended, the propulsion module that brought it to the Moon has made a detour, performing a series of complex maneuvers that took it from a tight lunar orbit back to Earth orbit. This was possible because the module still had more than 100 kg of fuel, allowing scientists to conduct additional maneuvers and experiments.

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Day Has Returned, but India’s Lander and Rover have Failed to Wake Up

The Pragyaan rover captured this image of the Vikram Lander on August 30th, before lunar night enshrouded it in its frigid darkness. Image Credit: ISRO.

It looks like India’s Chandrayaan-3 succumbed to the cold, and its mission is over. The frigid lunar night lasted about two weeks, and a new day has dawned. With that day came hopes of a sunlit revival for the lander and the rover, but the India Space Research Organization (ISRO) says the chances of the spacecraft awakening in the Sun are diminishing by the hour.

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As Night Falls, India’s Lunar Lander/Rover Goes to Sleep. Probably Forever

India's Pragyan lunar rover has been put into sleep mode after the end of its first lunar day. There's still a chance it could reawaken, but there's no guarantee. Image Credit: ISRO

India’s Chandrayaan-3 mission delivered its Vikram lander and Pragyan rover to the lunar surface on August 23rd. Now, as the lunar day ends two weeks later, the rover’s mission may be over. The Indian Space Research Organisation (ISRO) has put Pragyan into sleep mode.

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India's Rover Rolls Out Onto the Lunar Surface

The Indian Space Research Organisation (ISRO) successfully landed its Chandrayaan-3 Lander Module on the surface of the Moon on August 23, 2023. Credit: ISRO

On July 14th, 2023, the Indian Space Research Organization (ISRO) launched the third mission in its Chandrayaan (“Moon vehicle” in Hindi) lunar exploration program. Earlier this week (Wednesday, August 23rd), the Chandrayaan-3 mission’s Vikram lander touched down on the far side of the Moon, making India the fourth nation in the world to send missions to the lunar surface and the first to land one near the Moon’s south pole region. Shortly after that, the ISRO announced that they had deployed Pragyan, the rover element of the mission, to the surface.

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Chandrayaan-3 Lands Successfully on the Moon’s South Pole

The Indian Space Research Organisation (ISRO) successfully landed its Chandrayaan-3 Lander Module on the surface of the Moon on August 23, 2023. Credit: ISRO

India’s space agency successfully landed their Chandrayaan-3 lander on the lunar surface, becoming the fourth country to touch down on the Moon and the first to land at one of the lunar poles.

The Indian Space Resource Organization’s (ISRO) Chandrayaan-3 launched last month and made a soft landing on the Moon’s south pole at approximately 8:34 a.m. ET on August 23. The mission is set to begin exploring an area of the Moon that is of extreme interest, but Chandrayaan-3 is the first to visit this area in-situ. The lunar south pole is thought to contain water ice that could be a source of oxygen, fuel, and water for future missions, or perhaps even for a future lunar base or colony.

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