Chandrayaan-4 mission: ISRO probe gains momentum with key docking experiment in 2024

ISRO is gearing up for Chandrayaan-4, a mission to bring lunar samples back to Earth. The propulsion module's return to Earth orbit sets the stage for a key docking experiment in 2024.

ISRO Chairman S. Somanath reveals plans for Chandrayaan-4, citing the recent success of Chandrayaan-3 mission's propulsion module. The mission aims to demonstrate advanced space docking capabilities essential for lunar sample return, TOI reported. 

The lunar sample return involves intricate manoeuvres: collecting, placing in a canister, returning to lunar orbit, docking with a spacecraft, and returning to Earth. ISRO's Space Docking Experiment (SPADEX) is crucial for mastering these complexities.

SPADEX, scheduled for late 2024, will provide vital data on space rendezvous technology. This advancement is crucial not only for lunar missions but also for future space station endeavours and human space travel to the Moon.

Somanath reviews Chandrayaan-4 mission's progress, highlighting the identification of a team and ongoing architectural reviews. A comprehensive process, including system-by-system and technology reviews, is underway.

India collaborates with Japan on the Lunar Polar Exploration (LUPEX) mission, aiming to confirm water presence in the moon's polar regions. Challenges related to LUPEX's lander and rover weights are being addressed in the approval process.

S. Somanath cannot predict if Chandrayaan-4 or LUPEX will launch first, both awaiting approval. Chandrayaan-4 mission is an indigenous probe, while LUPEX involves international collaboration, adding complexity to the timeline.

The Chandrayaan-3 mission propulsion module's 44-day journey back to Earth involved intricate manoeuvres, showcasing ISRO's capabilities. The module, currently in Earth orbit, will use the SHAPE payload for studying habitable planet-like features of Earth.

S. Somanath emphasises that future missions benefit from the successful return of the propulsion module, highlighting its 44-day journey and the utilisation of the SHAPE payload for Earth studies.

ISRO's Vision: ISRO's roadmap, including a space station by 2035 and human presence on the Moon by 2040, reflects ambitious goals. The successful execution of Chandrayaan-4 mission and SPADEX will play pivotal roles in achieving these milestones.