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 Follows its Lunar Mission by Sending a Spacecraft to Study the Sun

The launch of India's Aditya-L1 spacecraft, bound for the Earth-Sun L1 Lagrange Point to study the Sun. Credit: ISRO.

Amid its Chandrayaan-3 mission to the Moon, India’s space agency launched another satellite and this one will study the Sun.

The spacecraft, called Aditya-L1, is bound for the Earth-Sun L1 Lagrange Point, located 1.5 million km from Earth. This will give it a perfect perspective to watch the Sun, similar to NASA’s SOHO mission. It will reach its destination in about three months and then use seven instruments to observe the Sun, its atmosphere, and the solar environment.

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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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India Launches Chandrayaan-3 to the Moon, Hoping for a Successful Landing

The Chandrayaan-3 spacecraft lifting off for the Moon from the Satish Dhawan Space Center on July 14, 2023. (Credit: Indian Space Resource Organisation (ISRO))

On July 14, 2023, at 2:35 pm Indian Standard Time (5:05 am EST), the Indian Space Resource Organisation (ISRO) successfully launched their Chandrayaan-3 spacecraft from the Satish Dhawan Space Center, which is the primary spaceport of the ISRO. The goal of the mission is to put India’s first lander (Vikram) and rover (Pragyan) on the lunar surface and is scheduled to touch down on the Moon on August 23, 2023. This mission comes after the ISRO’s Chandrayaan-2 Vikram lander crashed on the Moon on September 6, 2019, due to a last-minute guidance software glitch. While the ISRO indicated everything was going according to plan, they unexpectedly lost contact with the Vikram lander approximately 2.1 kilometers (1.3 miles) above the lunar surface.

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India’s Chandrayaan 2 is Creating the Highest Resolution Map We Have of the Moon

The Chandrayaan-2 lander, Vikram, attempted a landing September 7th (Friday the 6th in the United States), on a small patch of lunar highland smooth plains between Simpelius N and Manzinus C craters. Unfortunately the landing was not successful and location of the spacecraft has not been announced. The scene above was captured from an LROC Quickmap fly-around of the site, image width is about 150 kilometers across the center [NASA/GSFC/Arizona State University].

India’s space organization, ISRO, launched Chandrayaan 2 to the Moon last year in July. While its lander Vikram crashed on the lunar surface on September 7, the Chandrayaan 2 orbiter continues to orbit the Moon.

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India’s Crashed Lander is In This Picture, Somewhere

The Chandrayaan-2 lander, Vikram, attempted a landing September 7th (Friday the 6th in the United States), on a small patch of lunar highland smooth plains between Simpelius N and Manzinus C craters. Unfortunately the landing was not successful and location of the spacecraft has not been announced. The scene above was captured from an LROC Quickmap fly-around of the site, image width is about 150 kilometers across the center [NASA/GSFC/Arizona State University].

This image of the lunar highlands is from NASA’s Lunar Reconnaissance Orbiter. You’d need superhuman eyesight to spot it, but India’s crashed Vikram lander is in there somewhere. The lander attempted to land on the Moon on September 6th, but when it was only 2.1 km above the surface, within reach of its objective, ISRO (Indian Space Research Organization) lost contact with the spacecraft.

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India has Located the Vikram Lander, But it’s Still not Communicating With Home

Credit: ISRO

On Sunday (Sept. 8th), the Indian Space Research Organization (ISRO) announced that they had located Vikram, the lander element of their Chandrayaan-2 mission. The search began almost immediately after the space agency lost contact with the robotic spacecraft, which occurred moments before it set down on the lunar surface (on Friday, Sept. 6th).

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