Relevance for UPSC: GS Paper III (Science & Technology, Space)
Source: Indian Express; Indian Space Research Organisation releases

Context

The Indian Space Research Organisation successfully carried out its heaviest-ever launch, placing the BlueBird Block-2 communication satellite into Low Earth Orbit using the LVM3 rocket. The mission was executed through NewSpace India Limited for the United States firm AST SpaceMobile.

Key Facts

  • Payload mass: about 6.1 tonnes (highest by India)
  • Orbit: Low Earth Orbit (~500 km)
  • Purpose: Direct satellite-to-mobile broadband connectivity
  • Launch site: Satish Dhawan Space Centre

Why It Matters

  • Demonstrates India’s heavy-lift launch capability, essential for human spaceflight and future space stations.
  • Strengthens India’s role in the global commercial launch market.
  • Shows reliability of cryogenic propulsion, a critical advanced space technology.
  • Supports India’s transition from a government-only space programme to a commercial space economy.
UPSC Value Box

  • Low Earth Orbit: Earth orbit up to about 2,000 km, preferred for communication satellites due to low signal delay.
  • LVM3: India’s heavy-lift launch vehicle, also selected for the Gaganyaan human spaceflight mission.
  • Institution: Indian Space Research Organisation – India’s national space agency responsible for satellite launches and space missions.

Q. Which of the following best explains the significance of ISRO’s heaviest-ever launch?
(a) It demonstrated India’s first reusable launch vehicle
(b) It proved India’s capability to place heavy satellites in Low Earth Orbit
(c) It enabled interplanetary missions beyond Mars
(d) It marked India’s withdrawal from commercial space launches

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