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हिन्दी — Read in HindiLaunch vehicles, satellites and applications
India's launch vehicles and satellites and what they are used for: Earth observation, communication and navigation, and the launches of each year. Prelims has asked about the orbits of the Indian Regional Navigation Satellite System (IRNSS) satellites and the uses of Indian Remote Sensing satellites.
Foundation note: ISRO's launch vehicles and the orbits they serve
UPSC has asked
- Prelims 2023: countries with their own satellite navigation system
- Prelims 2018: the orbits of the IRNSS satellites
- Prelims 2015: uses of Indian Remote Sensing satellites
Showing 1 of 4 articles, those that changed from 1 to 31 August 2026.Show all
Everest and full-flow staged combustion
Copy link to Everest and full-flow staged combustionPrelims and Mains
Everest is an 800 kN rocket engine built by a Bengaluru startup on the full flow staged combustion cycle, the demanding end of engine design.
- The cycle an engine runs on decides how much of its propellant ends as thrust, and how hard the engine is to build.
- Everest burns liquid oxygen and methane, a pair called methalox that leaves little soot.
- The cycle throttles precisely and suits reusable rockets.
What changed
11 Aug 2026BriefA Bengaluru startup unveiled Everest, making India the fourth country with full flow staged combustion technology after Russia, the United States and China. The Hindu, 11 Aug 2026: What is the significance of India's first privately built FFSC rocket engine? (opens in a new tab)
Also filed elsewhere
- India's first commercial Earth observation constellation · on Space policy, private sector and governance
India's first fully commercial Earth observation constellation is a set of twelve satellites to be built, owned and operated by a private consortium by 2029 under IN-SPACe authorisation.
- Indian Space Policy 2023 · on Space policy, private sector and governance
The Indian Space Policy 2023 divides India's space work four ways and opens every activity, from building satellites to running launch sites, to non governmental entities.