Satellites

IDRSS Explained: India’s Data Relay Satellite System, And Why Gaganyaan Needs It

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IDRSS is set to launch on a GSLV Mk II rocket like this one, seen here lifting off carrying the NISAR satellite

Mission File Satellites IDRSS-1 and IDRSS-2 Operator ISRO Mission Type Geostationary data-relay satellite system Mass ~2,000 kg class each (I-2K extended bus) Launch Vehicle GSLV Mk II Launch Site Second Launch Pad, Satish Dhawan Space Centre, Sriharikota Target Window 2027, TBD – per public mission trackers Status Approved and funded since the 2019–20 budget; still … Read more

What is GSLV? India’s Powerful Rocket Explained for Beginners (2026)

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GSLV rocket

Discover everything about GSLV, India’s powerful Geosynchronous Satellite Launch Vehicle. Learn how it works, why its cryogenic engine is a breakthrough, its three-stage design, major ISRO missions, and how GSLV differs from PSLV—all explained in simple language for students, beginners, and space enthusiasts.