India to Study Venus

Venus Planet
Venus Planet

ISRO has invited scientists to suggest studies for a potential orbiter mission to Venus

Solar system studies have seen a remarkable growth in the last few decades, due to advances in space technology, observational capabilities and computational technologies. This has enhanced our knowledge and understanding of the diversity of complex processes across the Solar system.

It is quite interesting to find clues as to how the planetary systems might have originated and evolved, and how they are different and similar to each other.

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% closer to the sun as compared to Earth resulting in much higher solar flux. Exploration of Venus began in the early 1960s.  Venus has been explored by flyby, orbiter, a few lander missions and atmospheric probes.

In spite of great progress made in exploring Venus, there still exist gaps in our basic understanding about surface/sub-surface features and processes, super rotation of Venusian atmosphere and its evolution and interaction with solar radiation/solar wind.

The payload capability of the proposed satellite is likely to be 175 kg with 500W of power.

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.

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