EJECTA HALO (Indian Express)

  • 30 Oct 2023

What is the News ?

The Chandrarayaan-3 Lander Module produced an amazing 'ejecta halo' of lunar material, according to recent information released by the Indian Space Research Organization (ISRO).

Facts About:

An ejecta halo is a bright, irregular patch of lunar material that surrounds a lander after it has landed on the Moon.

  • It is caused by the thrust from the lander's engines and the impact of the lander on the lunar surface, which displaces and ejects lunar regolith (soil) and dust.
  • The ejecta halo can be several meters in diameter and can extend tens of meters from the lander.

The Vikram lander of the Chandrayaan-3 mission created a spectacular ejecta halo when it landed on the Moon in August 2023.

  • Scientists from the Indian Space Research Organisation (ISRO) estimate that about 2.06 tonnes of lunar regolith were ejected and displaced over an area of 108.4 square meters around the landing site.

Ejecta halos can be studied to learn more about the composition and structure of the lunar regolith.

  • They can also be used to calibrate remote sensing instruments and to develop new methods for landing spacecraft on the Moon.