US EditionISRO Prepares for Historic BlueBird Block-2 Mission
The BlueBird Block-2 satellite, weighing 6,100 kg, is the heaviest payload launched by ISRO's LVM3 to enable global direct-to-phone 4G/5G broadband.
- ISRO is set to lift BlueBird Block-2, weighing 6,100 kg, on LVM3-M6 at 8:54 am IST from Satish Dhawan Space Centre's second pad on December 24, 2025.
- Under an NSIL–AST commercial pact, the 24-hour countdown began on December 23, 2025, as NewSpace India Ltd prepares the dedicated commercial flight for AST SpaceMobile.
- LVM3's configuration includes two S200 boosters and an L110 core stage; after about 15 minutes of flight, BlueBird Block-2 will separate and deploy in orbit.
- BlueBird Block-2 is designed to deliver direct-to-phone 4G/5G connectivity worldwide and is part of a global LEO constellation enabling services without specialised equipment.
- Featuring a 223 $m^2$ phased array, the satellite aims to be the largest commercial commsat in LEO and will operate at about 600 km in Low Earth Orbit while its performance is monitored.
17 Articles
17 Articles
ISRO set for historic LVM3-M6 launch today: All you need to know about the mission
In a landmark commercial mission, the Indian Space Research Organisation (ISRO) is scheduled to launch the BlueBird Block-2 spacecraft today, December 24, at 8:55.30 AM IST. The launch was earlier scheduled for 8.54 am today but got delayed for 90 seconds to avoid space debris. The mission will lift off from the second launch pad at the Satish Dhawan Space Centre (SDSC) in Sriharikota, using the LVM3-M6 heavy-lift launch vehicle. Weighing 6,100 …
Countdown for launch of ISRO's Bluebird Block-2 Mission begins in Sriharikota
ISRO's LVM3-M6 rocket commenced its 24-hour countdown for the launch of a new generation US communication satellite, Bluebird Block-2. This dedicated commercial mission, scheduled for December 24, 2025, will deploy the heaviest payload to Low Earth Orbit in LVM3 history, weighing 6,100 kg.
ISRO Prepares for Historic BlueBird Block-2 Mission
ISRO chairman V Narayanan visited the Tirupati temple to offer prayers ahead of the BlueBird Block-2 mission. Scheduled for December 24, the mission will deploy a communication satellite for AST SpaceMobile. The satellite, intended for 4G and 5G use, marks the heaviest launched from India.
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