- Shukrayaan is ISRO’s venus mission, the idea of which was born in 2012.
- Shukrayaan I will be an orbiter mission.
- Its scientific payloads currently include a high-resolution synthetic aperture radar and a ground-penetrating radar.
- The mission is expected to study Venus’s geological and volcanic activity, emissions on the ground, wind speed, cloud cover, and other planetary characteristics from an elliptical orbit.
- The launch will involve GSLV Mark II or GSLV Mark III
Launch windows of Venus
- Optimal launch windows from Earth to Venus occur once around every 19 months.
- This is why ISRO has ‘backup’ launch dates in 2026 and 2028 should it miss the 2024 opportunity.
- But even more optimal windows, which further reduce the amount of fuel required at liftoff, come around every eight years.
Other Venus mission
- Veritas, Mariner Series, Pioneer Venus-I, Pioneer Venus- II- Of USA
- EnVision, Venus Express- Europe
- Venera Series, Vegas 1, Vegas 2
- Akatsuki- Of Japan- Of Russia
Why in news
- Indian Space Research Organisation (ISRO) said that the mission could be postponed to 2031.