ISRO Successfully Launches BlueBird Block-2, the Largest Commercial Communication Satellite, into Low Earth Orbit

The Indian Space Research Organisation (ISRO) achieved a significant milestone by launching the BlueBird Block-2 satellite using the LVM3-M6 launch vehicle. This mission, launched from the Satish Dhawan Space Centre, marks ISRO's first dedicated commercial launch for a U.S. customer, AST SpaceMobile. The satellite, weighing 6,100 kg, is the heaviest payload ever launched by LVM3 from Indian soil. It features a 223-square-meter phased array, making it the largest commercial communications satellite in Low Earth Orbit (LEO). The mission aims to provide direct-to-mobile cellular broadband connectivity, enabling 4G/5G services globally.

Key Points

  • The LVM3 (Launch Vehicle Mark 3) demonstrated its heavy-lift capability and reliability for global commercial missions.
  • BlueBird Block-2 is designed for direct-to-mobile connectivity, bypassing traditional ground-based cellular infrastructure.
  • The satellite is part of a global LEO constellation intended to provide voice, video, and data services everywhere.
  • This launch strengthens India's position in the global commercial space market and enhances self-reliance in space technology.

Exam Facts

  • Launch Vehicle: LVM3 (Launch Vehicle Mark 3).
  • Satellite Weight: 6,100 kg.
  • Customer: AST SpaceMobile (U.S. based).
  • Phased Array Size: 223 square meters.

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All current affairs of 25 December 2025