SpaceX

A Shortfall of Gravitas

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Space X Starlink Mission Patch

Falcon 9 Block 5 | Starlink Group 10-54

Cape Canaveral Space Force Station

Space Launch Complex 40

Falcon 9 Block 5

On Friday June 12, 2026 at 12:37 UTC, SpaceX launched the Starlink Group 10-54 mission with a Falcon 9 Block 5 from Space Launch Complex 40 at Cape Canaveral SFS, FL, USA.

Description generated from the Launch Library 2 API.
——————————————————————
Object in the Launch Library 2 API: https://ll.thespacedevs.com/2.3.0/launches/229267d8-74ca-4d0b-8711-b2efe621fc6b/?format=json
Related news in the Spaceflight News API: https://api.spaceflightnewsapi.net/v4/articles/?launch=229267d8-74ca-4d0b-8711-b2efe621fc6b
——————————————————————

Rehosted on YouTube by The Space Devs.
Support our work on https://www.patreon.com/TheSpaceDevs
——————————————————————
Website: https://thespacedevs.com
X: https://x.com/thespacedevs
Discord: https://discord.com/invite/p7ntkNA
——————————————————————

Original...

English

SpaceX Starlink Group 10-54

Unofficial Re-stream

Watch live coverage as SpaceX launches a Falcon 9 rocket carrying 29 satellites for the company's Starlink internet service. Liftoff from Space Launch Complex 40 at Cape Canaveral Space Force Station is scheduled for Friday, June 12, at 8:37 a.m. EDT (1237 UTC). The launch comes as SpaceX completes its IPO and shares in the company are publicly traded for the first time on the stock exchange.

The first-stage Falcon 9 booster, serial number 1080, launching for a 27th time, will land on SpaceX's drone ship 'A Shortfall of Gravitas', stationed in the Atlantic Ocean, roughly 8.5 minutes after leaving the launch pad.

Starlink 10-54, will take a north-easterly trajectory on departure from Florida's Space Coast.

Our live coverage with commentary from Spaceflight Now's Will Robinson-Smith ...

Live: SpaceX Falcon 9 rocket launches Starlink satellites from Cape Canaveral as shares hit Nasdaq

Unofficial Webcast

Launch Window: June 12th from 8:27AM to 12:27AM EDT (12:27-16:27 UTC)
Current T0: June 12th at 8:27AM EDT (12:27 UTC)

Mission: Falcon 9 launch of 29 Starlink v2 Mini satellites into orbit.
Launch location: Space Launch Complex 40 (SLC-40), Cape Canaveral Space Force Station, Earth.
Target orbit: Low-Earth Orbit (LEO)
Booster: B1080-27; 59d 2h 53min 50s turnaround
Past customer missions: Axiom-2, Euclid, Axiom-3, CRS-30, SES-24, NG-21.
Past Starlink missions: 6-11, 6-24, 6-52, 6-62, 10-10, 6-69, 12-1, 12-2, 12-4, 10-12, 6-80, 6-75, 10-32, 10-16, 10-30, 10-15, 6-78, 6-100, 10-40, 10-24.
Satellites launched: 521, will be 550 after this mission.
Booster recovery: A Shortfall Of Gravitas (ASOG)
Fairing recovery: Bob
Rocket trajectory: Northeast flying parallel to the US east coast
Payload...

SpaceX Launches Falcon 9 with Starlink 10-54

Starlink Mission

Official Webcast

CAS Space

Kinetica 1 | Unknown Payload

Jiuquan Satellite Launch Center

Launch Area 130

Kinetica 1

Of Course I Still Love You

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Falcon 9 Block 5 | Starlink Group 17-54

Vandenberg SFB

Space Launch Complex 4E

Isar Aerospace

Second test flight of the Isar Spectrum launch vehicle. This launch will carry 5 cubesats and 1 non-separable experiment as part of European Space Agency (ESA)'s “Boost!” program:

* CyBEEsat (TU Berlin)
* TriSat-S (University of Maribor)
* Platform 6 (EnduroSat)
* FramSat-1 (NTNU)
* SpaceTeamSat1 (TU Wien Space Team)
* Let It Go (Dcubed, non-separable experiment)

Onward and Upward Patch

Spectrum | Onward and Upward

Andøya Spaceport

Orbital Launch Pad

Spectrum

Mission Name: 'Onward and Upward'

Launch Date: Updates via https://isaraerospace.com/mission-updates-overview

Launch site: Andøya Space

The second flight of our ‘Spectrum’ launch vehicle marks a significant milestone serving as both the vehicle’s qualification mission and its first flight carrying payload.

"Onward and Upward" symbolizes our relentless drive for progress and continuous improvement, reflecting our determination to build upon the successes and lessons learned from our inaugural test flight.

The livestream is produced in collaboration with the @NASASpaceflight team.

More information on the Mission ‘Onward and Upward’ here: https://isaraerospace.com/mission-2

"Onward and Upward" Mission of Isar Aerospace

Mission Name: 'Onward and Upward'

Launch Date: Updates via https://isaraerospace.com/mission-updates-overview

Launch site: Andøya Space

The second flight of Isar's ‘Spectrum’ launch vehicle marks a significant milestone serving as both the vehicle’s qualification mission and its first flight carrying payload.

"Onward and Upward" symbolizes Isar's relentless drive for progress and continuous improvement, reflecting their determination to build upon the successes and lessons learned from our inaugural test flight.

NSF/NASASpaceflight LLC is providing live stream production services for Isar Aerospace's second flight of Spectrum.

More information on the Mission ‘Onward and Upward’ here: https://isaraerospace.com/mission-2

LDAPAABJRG2UMCU3

Isar Aerospace Launches the "Onward and Upward" Mission

CASC

Long March 3B/E | Unknown Payload

Xichang Satellite Launch Center

Launch Complex 2 (LC-2)

Long March 3B/E

AST SpaceMobile’s Block 2 BlueBird satellites are designed to deliver up to 10 times the bandwidth capacity of the BlueBird Block 1 satellites, required to achieve 24/7 continuous cellular broadband service coverage in the United States, with beams designed to support a capacity of up to 40 MHz, enabling peak data transmission speeds up to 120 Mbps, supporting voice, full data and video applications. The Block 2 BlueBirds, featuring as large as 2400 square foot communications arrays, will be the largest satellites ever commercially deployed in Low Earth orbit once launched.

This launch will feature 3 satellites.

Falcon 9 Block 5 | BlueBird Block 2 #3-5

Arianespace

Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, this constellation will be managed by Kuiper Systems LLC, a subsidiary of Amazon. This constellation is planned to be composed of 3,276 satellites. The satellites are projected to be placed in 98 orbital planes in three orbital layers, one at 590 km, 610 km and 630 km altitude.

36 satellites will be carried on this Ariane 6 launch.

VA269 Patch

Ariane 64 Block 2 | Amazon Leo (LE-03)

Guiana Space Centre

Ariane Launch Area 4

Ariane 64 Block 2

Rocket Lab

Synthetic aperture radar satellite for Japanese Earth imaging company Synspective.

Ten Owl Of Ten Patch

Electron | Ten Owl Of Ten (StriX Launch 10)

Rocket Lab Launch Complex 1

Unknown Pad

Electron

Landing Zone 4

Fourteenth batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office to provide imaging and other reconnaissance capabilities.

NROL-146

Falcon 9 Block 5 | NROL-179

NROL-179 Mission

The Globalstar global mobile communications network offers global, digital real time voice, data and fax services via its Low Earth Orbit satellite constellation. The constellation operates in a 1410 km orbit inclined at 52 degrees.

In early 2022, Globalstar contracted with MDA for the construction of 17 new 2nd generation refresh satellites to replenish the existing constellation. Rocket Lab is sub-contracted to build the satellites' buses and the launch dispensers.

Falcon 9 Block 5 | Globalstar 2-R Mission 1 (x 9)

Globalstar 2-R Launch 1 Mission

Falcon 9 Block 5 | Starlink Group 17-28

Long March 7A | Unknown Payload

Wenchang Space Launch Site

Long March 7A

Falcon 9 Block 5 | Starlink Group 17-45

Tranche 1 Transport Layer F is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites.

The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance.

Falcon 9 Block 5 | SDA Tranche 1 Transport Layer F

China Rocket Co.

Smart Dragon 3 | Unknown Payload

Sea Launch

DeFu-15002 mobile launch platform

Smart Dragon 3

Northrop Grumman Space Systems

Contracted by NASA under the Small Business Innovation Research Phase 3 contract, Katalyst Space Technologies' LINK servicing spacecraft will rendezvous and attach to NASA’s Neil Gehrels Swift Observatory to re-boost its orbit. This aims to demonstrate a key capability for the future of space exploration and extending the Swift mission’s science lifetime in gamma ray astronomy.

Swift Rescue Mission Patch

Pegasus XL | Swift Boost Mission

Ronald Reagan Ballistic Missile Defense Test Site

Air Launch

Pegasus XL

Tranche 1 Tracking Layer A is one of five missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Tracking Layer constellation, which will provide global indications, warning, tracking, and targeting of advanced missile threats, including hypersonic missile systems.

Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer A

Tranche 1 Tracking Layer E is one of five missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Tracking Layer constellation, which will provide global indications, warning, tracking, and targeting of advanced missile threats, including hypersonic missile systems.

Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer E

First test launch of CASC’s Long March 10B rocket.

Long March 10B | Demo Flight

Commercial LC-2

Long March 10B

Tranche 1 Transport Layer D is one of six missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation, which will provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms from Low Earth Orbit satellites.

The constellation will be interconnected with Optical Inter-Satellite Links (OISLs) which have significantly increased performance over existing radio frequency crosslinks. It is expected to operate over Ka band, have stereo coverage and be dynamically networked for simpler hand-offs, greater bandwidth and fault tolerance.

Falcon 9 Block 5 | SDA Tranche 1 Transport Layer D

ISRO

GISAT-1A (GEO Imaging Satellite) is an Indian earth observing satellite operating from geostationary orbit to facilitate continuous observation of Indian sub-continent, quick monitoring of natural hazards and disaster.

GSLV Mk II | GISAT-1A (EOS-05)

Satish Dhawan Space Centre

Satish Dhawan Space Centre Second Launch Pad

GSLV Mk. II

Tranche 1 Tracking Layer C is one of five missions by the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Tracking Layer constellation, which will provide global indications, warning, tracking, and targeting of advanced missile threats, including hypersonic missile systems.

Falcon 9 Block 5 | SDA Tranche 1 Tracking Layer C

Rocket Factory Augsburg

First flight of the RFA One launch vehicle. Will carry 7 satellites for various companies and organizations coordinated by the German Aerospace Center (DLR).

* AllBertEinStein
* ARTICA
* Curium Two
* ERMINAZ
* PCIOD
* Separation Ring Mission
* SpaceDREAM

RFA One | Maiden Flight

SaxaVord Spaceport

Launch Pad Fredo

RFA One

Launch Complex 3 Landing Pad

First low-altitude hop test of a Themis demonstrator, with a targeted altitude up to 100 m.

Themis Demonstrator | T1H-1

Esrange Space Center

Launch Complex 3B

Themis Demonstrator

Agency for Defense Development

Note: Launch vehicle name is provisional.

First orbital full version launch of the South Korean military small satellite launch vehicle, after 2 sub-orbital tests of individual stages on 30 March and 30 December 2022, and 1 orbital test flight without the 2nd stage on 4 December 2023. Details TBD.

South Korean ADD Solid-Fuel SLV | Demo Flight

Jeju Island

ADD Offshore launch platform

South Korean ADD Solid-Fuel SLV

Rocket Launches Today