Mission description
A batch of 21 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Launch index
Mission imagery · Falcon 9 Block 5
Launch Successful
Falcon 9 Block 5 | Starlink Group 12-21
March 13, 2025 at 2:35 AM UTC
Cape Canaveral SFS, FL, USA
Launch details
LAUNCH IN
T−00d00h00m00s
March 13, 2025 at 2:35 AM UTC
Status: Launch Successful · Live feed refreshes every 30 seconds
Space Launch Complex 40
Cape Canaveral SFS, FL, USA · 28.5619, -80.5774
- Rocket
- Falcon 9 Block 5
- Launch probability
- 99%
- Window opens
- March 13, 2025 at 2:20 AM UTC
- Window closes
- March 13, 2025 at 6:51 AM UTC
- Feed updated
- March 14, 2025 at 4:48 AM UTC
Mission media
Watch the launch.
GO! - SpaceX - Falcon 9 - Starlink 12-21 - SLC-40 - Cape Canaveral SFS - Space Affairs Live
Full video recordStarlink MissionWatch live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Cape CanaveralSpaceX - Falcon 9 - Starlink 12-21 - SLC-40 - Cape Canaveral SFS - March 12, 2025🚀 SCRUB: SpaceX Falcon 9 Launches Starlink Group 12-21Watch Live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Cape Canaveral🚀 SpaceX Falcon 9 Launches Starlink Group 12-21SpaceX Starlink Group 12-21
Vehicle
Falcon 9 Block 5
Falcon · Block 5
Height
70 m
Diameter
3.65 m
LEO capacity
22,800 kg
Successful launches
624
Launch complex
Space Launch Complex 40
Cape Canaveral SFS, FL, USA
Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.
Open mapConnected program records
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To Be Determined
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September 30, 2026 at 12:00 AM UTC
Official links
GO! - SpaceX - Falcon 9 - Starlink 12-21 - SLC-40 - Cape Canaveral SFS - Space Affairs LiveSPACE AFFAIRSStarlink MissionSpaceXWatch live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Cape CanaveralSpaceflight NowSpaceX - Falcon 9 - Starlink 12-21 - SLC-40 - Cape Canaveral SFS - March 12, 2025SPACE AFFAIRS🚀 SCRUB: SpaceX Falcon 9 Launches Starlink Group 12-21NASASpaceflightWatch Live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Cape CanaveralSpaceflight Now