ISRO will launch the heaviest American communication satellite on December 24 under LVM3 mission.
This is LVM3’s sixth operational mission and its heaviest commercial payload to date.
LVM3-M6/Bluebird Block-2 Mission: Indian Space Research Organization (ISRO) is going to show its strength once again. The sixth operational flight of the LVM3 rocket will be conducted on 24 December 2025 at 8:54 am from the Satish Dhawan Space Center in Sriharikota, Andhra Pradesh. The name of this mission is LVM3-M6 / Bluebird Block-2 Mission. This is completely a commercial mission, in which the Bluebird Block-2 communication satellite of American company AST SpaceMobile will be launched. This mission is being executed through NewSpace India Limited (NSIL), the commercial arm of ISRO.
The Bluebird Block-2 satellite weighs approximately 6.5 tonnes and will be the largest commercial communications satellite to be deployed in Low Earth Orbit (LEO). Also, it is the heaviest payload ever launched from Indian soil by an LVM3 rocket.
What is LVM3?
LVM3 (Launch Vehicle Mark-3), formerly known as GSLV Mk-III, developed by ISRO is India’s most powerful rocket. It is also often known as ‘Bahubali Rocket’.
The LVM3 rocket has a height of 43.5 meters and a lift-off weight of 640 tonnes. It can carry a payload of up to 4 tonnes in Geosynchronous Transfer Orbit (GTO) and about 10 tonnes in Low Earth Orbit (LEO). LVM3 has successfully executed many important missions in the past, including the launch of 72 satellites under Chandrayaan-2, Chandrayaan-3 and two OneWeb missions. Its previous mission was LVM3-M5, which successfully launched the CMS-03 satellite on 2 November 2025.
The specialty of Bluebird Block-2 satellite is that it has been developed by American company AST SpaceMobile. It is a next generation communication satellite and its biggest feature is that it will provide cellular broadband connectivity to ordinary smartphones directly from space. That is, without any additional device or tower, 4G/5G internet can be used even in remote areas.
This satellite has a large phased array antenna of about 2,400 square feet, which will be the largest commercial array to be deployed in low Earth orbit. It is 3.5 times larger than the first Bluebird satellites. Will provide 10 times more data capacity. Peak speed can be up to 120 Mbps.
Importance of mission?
This mission will further strengthen India-US space cooperation. ISRO has now become a reliable partner for launching foreign commercial satellites. AST SpaceMobile is the second major satellite broadband company, after OneWeb, to use LVM3. This launch will enhance the commercial potential of ISRO and provide India a strong position in the global space market. Live streaming of the mission will be available on the YouTube channels of ISRO and AST SpaceMobile.
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