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ISRO’s Shukrayaan

Topics Covered: Awareness in space.

ISRO’s Shukrayaan:


The Indian Space Research Organisation (ISRO) has short-listed 20 space-based experiment proposals for its proposed Venus orbiter mission ‘Shukrayaan’.

About Shukrayaan:

It is a mission to study Venus for more than four years.

Scientific objectives: Investigation of the surface processes and shallow subsurface stratigraphy; and solar wind interaction with Venusian Ionosphere, and studying the structure, composition and dynamics of the atmosphere.

The satellite is planned to be launched onboard GSLV Mk II rocket.

The proposed orbit is expected to be around 500 x 60,000 km around Venus. This orbit is likely to be reduced gradually, over several months to a lower apoapsis (farthest point).


Why study Venus?

  • Venus is often described as the “twin sister” of the Earth because of the similarities in size, mass, density, bulk composition and gravity.
  • It is believed that both planets share a common origin, forming at the same time out of a condensing nebulosity around 4.5 billion years ago.
  • Venus is around 30 per cent closer to the Sun as compared to Earth resulting in much higher solar flux.


Prelims Link:

  1. Location of Venus.
  2. Shukrayaan mission.
  3. Objectives.
  4. Various missions to Venus.

Mains Link:

Discuss the objectives and significance of Shukrayaan mission.


Sources: Indian Express.