Russia's Luna-25 Mission- Objectives ,Instruments, Budget & Luna 25 vs Chandrayaan-3

Recently Russian space agency Roscosmos launched its new Moon mission after 47 years. The name of this mission is Luna 25. Luna 25 mission was launched on 10 August 2023, 23:10 UTC with the help of a Soyuz-2.1b rocket from the Vostochny Cosmodrome in Russia's far eastern Amur Region. It will land near the South Pole of Moon at the crater Boguslawsky. Initially, the name of the Luna 25 mission was Luna-Glob Lander but after it was renamed to Luna 25. 

Russia's Luna-25 moon lander being prepped for launch.
Russia's Luna-25 moon lander being prepped for launch. (Image credit: NPO Lavochkina)

Mission Of Luna 25

If all goes according to the plan of Roscosmos. Luna-25 will spend the next five days journeying to the moon, then circle the natural satellite for another five to seven days. The spacecraft will then set down in the moon's south polar region, near Boguslawsky Crater. If something went wrong while landing Luna 25 there are also two backup landing spots southwest of Manzini Crater and south of Pentland A Crater. After landing Luna 25 will work for 1 year. The exact date of landing of Luna 25 is 21 August 2023 which is two days before the landing of Chandrayaan-3. The budget of Luna 25 is 1650 crore.

Main Objectives of Luna 25

There are two primary objectives of the Luna 25 mission.
  • To study the composition of the polar regolith.
  • To study the plasma and dust components of the lunar polar exosphere.
To complete these objectives Luna 25 will carry 30 kg (66 lb) of scientific instruments, including a robotic arm for soil samples and possible drilling hardware.

Instruments in Luna 25 ( Science Payload )

The total weight of the lander is 30kg composed by 9 national science instruments.
  • ADRON-LR, active neutron and gamma-ray analysis of regolith
  • ARIES-L, measurement of plasma in the exosphere
  • LIS-TV-RPM, infrared spectrometry of minerals and imaging
  • LASMA-LR, laser mass-spectrometer
  • (STS-L) Service television system 
  • (PmL) Dust Monitor 
  • THERMO-L, measurement of the thermal properties of regolith
  • Laser retroreflector, Moon libration and ranging experiments
  • BUNI, power and science data support

Luna 25 vs Chandrayaan-3 

moon's south pole in Boguslavsky Crater
Moon's south pole in Boguslavsky Crater (Image credit: Roscosmos)

As we all know Chandrayaan-3 was launched before the Luna 25 but Luna 25 will land before two days of landing of Chandrayaan-3. These both missions will land on the South pole of the Moon but have different landing sites. Now the question in everyone's mind is "How is Luna 25 able to land on Moon before Chandrayaan-3? " This is because of the different trajectories taken by both of them. Chandrayaan 3 is orbiting the Earth to obtain the escape velocity of Earth which help to save fuel for Chandrayaan 3. Whereas Luna 25 follows the shortest path between Earth and Moon.

To Know the main difference between both of them read these articles- 

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