India to launch Shukrayaan Venus mission in 2024 after pandemic delays: reports

A view of Venus from NASA's Mariner 10 spacecraft based on data captured in 1974.India is now planning to launch its own Venus orbiter in 2024.
A view of Venus from NASA's Mariner 10 spacecraft based on data captured in 1974.India is now planning to launch its own Venus orbiter in 2024. (Image credit: NASA/JPL-Caltech)

India plans to launch a new orbiter to Venus in 2024, a year later than planned, according to media reports.

The Shukrayaan orbiter will be the first mission to Venus by the India Space Research Organization (opens in new tab) (ISRO) and will study the planet for four years, according to SpaceNews (opens in new tab), which cited a presentation by an ISRO research scientist at a NASA-chartered committee Nov. 10. 

ISRO has been soliciting ideas for instruments for a Venus-based mission since at least 2018 (opens in new tab), according to its website. At the planetary science committee, ISRO's T. Maria Antonita presented more information about Shukrayaan during a discussion about NASA's new 10-year plan for planetary science, SpaceNews reported (opens in new tab).

Related: India looks beyond the moon to Mars, Venus and astronaut missions (opens in new tab)

"ISRO was aiming for a mid-2023 launch when it released its call for instruments in 2018, but Antonita told members of the National Academies' decadal survey planning committee last week that pandemic-related delays have pushed Shukrayaan's target launch date to December 2024," SpaceNews stated in a Nov. 19 report. 

A backup launch opportunity is available when Venus and Earth are next aligned in mid-2026, in such a way to minimize spacecraft fuel use during the planetary transit, Antonita added.

Shukrayaan is set to launch on India's GSLV Mk II rocket, but it may go on the more powerful GSLV Mk III rocket to carry more instruments or fuel, Antonita told the committee. ISRO will make a final decision in the next three to six months.

The spacecraft will carry several instruments to probe the Venusian environment. The flagship instrument will be a synthetic aperture radar to examine the Venusian surface, which is shrouded by thick clouds that make it impossible to glimpse the surface in visible light. An earlier version flew on the Indian Chandrayaan-2 spacecraft now orbiting the moon, Space News reported.

Another instrument will be a Swedish-Indian collaboration known as the Venusian Neutrals Analyzer, which will examine how charged particles from the sun interact with the atmosphere of Venus, according to The Economic Times (opens in new tab). An earlier generation of this instrument launched on the Indian Chandrayaan-1 moon mission of 2008-09, studying how the sun's particles affect a world with a far more tenuous atmosphere.

Shukrayaan will also bring an instrument to Venus to examine the planet's atmosphere in infrared, ultraviolet and submillimeter wavelengths, Antonita said. Earlier in 2020, scientists announced the possible detection of phosphine —  a life-friendly element —  in Venus' atmosphere, although many in the science community remain skeptical of the findings

In September, the French space agency (CNES) announced it would also fly an instrument on Shukrayaan. The Venus Infrared Atmospheric Gases Linker (VIRAL) is a collaboration with Russian federal space agency Roscosmos. Antonita added that other instruments have been shortlisted and that India plans to fly an instrument from Germany.

Dozens of missions have flown to Venus since the 1960s, but only a few in recent years. For example, the European Space Agency's Venus Express orbited the planet between 2006 and 2014, and Japan's Akatsuki spacecraft entered orbit in 2015 after a previous unsuccessful attempt. Several spacecraft are also performing flybys of Venus in the near future, including NASA's Parker Solar Probe for solar observation, and Europe's BepiColombo en route to Mercury.

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Elizabeth Howell
Staff Writer, Spaceflight

Elizabeth Howell, Ph.D., is a staff writer in the spaceflight channel since 2022. She was contributing writer for Space.com (opens in new tab) for 10 years before that, since 2012. Elizabeth's reporting includes an exclusive with Office of the Vice-President of the United States, speaking several times with the International Space Station, witnessing five human spaceflight launches on two continents, working inside a spacesuit, and participating in a simulated Mars mission. Her latest book, "Why Am I Taller?", is co-written with astronaut Dave Williams. Elizabeth holds a Ph.D. and M.Sc. in Space Studies from the University of North Dakota, a Bachelor of Journalism from Canada's Carleton University and (soon) a Bachelor of History from Athabasca University. Elizabeth is also a post-secondary instructor in communications and science since 2015. Elizabeth first got interested in space after watching the movie Apollo 13 in 1996, and still wants to be an astronaut someday. Mastodon: https://qoto.org/@howellspace