· space brief · 5 min read
Space Brief 10 Dec 2025
Today's brief covers China's intense launch schedule, a new Arctic military constellation, Muon Space's defense innovations, and SpaceX's classified NROL-77 mission.

📰Top Stories
China’s Launch Blitz: 4 Missions in 4 Days
China has executed a breathtaking series of launches, deploying four missions in just four days. This rapid sequence aims to boost its Guowang low Earth orbit megaconstellation and introduce new Yaogan reconnaissance satellites, underscoring China’s ambitious expansion in space infrastructure and surveillance capabilities.
Read the full story: SpaceNews
Canada Advances Arctic Military Communications
Canada has enlisted Telesat and MDA Space for a strategic study targeting the development of a military communications network in the Arctic. This initiative aims to fortify communication capabilities for the Canadian Armed Forces, enhancing operational support in challenging northern environments.
Read the full story: SpaceNews
SpaceX’s Mysterious NROL-77 Mission for U.S. Military
SpaceX successfully launched the classified NROL-77 mission from Florida for the U.S. National Reconnaissance Office. This mission highlights SpaceX’s ongoing role in national security launches, with the Falcon booster recovered at Landing Zone 2 for the last time.
Read the full story: Space.com
Muon Space Innovates Missile Defense Sensors
Muon Space is developing advanced sensor payloads for missile defense satellites by adapting commercial thermal-sensing technology for military use. This move reflects the growing trend of leveraging commercial tech for robust defense applications.
Read the full story: SpaceNews
Pentagon Expands AI Tools Across Military with Gemini
In a significant technological leap, the Pentagon is deploying Google’s Gemini across its GenAI platform. This will provide advanced generative AI capabilities to all military and civilian personnel, aiming to enhance operational efficiency and decision-making processes.
Read the full story: Breaking Defense
SpaceX’s NROL-77: Behind the Scenes of a Classified Launch
Further details about the NROL-77 mission reveal it was SpaceX’s final use of Landing Zone 2 for booster recovery. The launch, which took place from Cape Canaveral, underscores ongoing collaborations between SpaceX and national defense agencies.
Read the full story: Spaceflight Now
🛰️Satellite Spotlight
- Satellite Name: MOST
- NORAD ID: 27843
- Launch Date: June 30, 2003
- Mission: MOST (Microviability and Oscillations of Stars) is dedicated to monitoring the brightness of stars, allowing scientists to study their oscillations and contribute to our understanding of stellar structures and dynamics.
- Orbit: LEO (Low Earth Orbit)
- Operator: Canadian Space Agency (CSA)
- Fun Fact: MOST was designed for a mission of one year but remarkably operated for over 15 years, making significant contributions to the field of astronomy.
Track this satellite in real-time on our web app: Track MOST
🌌Space Weather
Next 24 Hours
-
Radio Blackouts Probability
- Minor: 65
- Major: 15
- Risk: None
-
Solar Radiation
- Probability: 15
- Risk: None
-
Geomagnetic Storming
- Scale: 1
- Impact: minor
- Activity: Moderate
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Impact Summary
- No risk of radio blackouts.
- No risk of solar radiation storms.
- Moderate geomagnetic activity, with minor geomagnetic storms expected.
- Geomagnetic outlook shows no G1 (Minor) or greater geomagnetic storms anticipated.
- No significant transient or recurrent solar wind features are forecast.
- There is a slight chance for S1 (Minor) or greater solar radiation storms on 10-11 Dec.
- R1-R2 (Minor-Moderate) radio blackouts are likely, with a slight chance for R3 (Strong) or greater events on 10-12 Dec.
Long Term Forecast
- Forecast of Solar and Geomagnetic Activity from 08 December to 03 January 2026 indicates:
- M-class flares (R1-R2/Minor-Moderate) are likely, with a slight chance for X-class flares (R3/Strong or greater).
- A slight chance for the greater than 10 MeV proton flux to reach 10 pfu (S1-Minor) throughout much of this period.
- The greater than 2 MeV electron flux is expected to reach high levels on 08-09, 12-13, 16-17, 25-29 Dec, and 01-03 Jan.
- Normal to moderate levels are expected during the rest of the outlook.
- Geomagnetic field activity may reach G1 (Minor) storm levels on 08 and 10 Dec, and G2-G3 (Moderate-Strong) storming is likely on 09 Dec due to the anticipated arrival of a CME from 06 Dec.
- Periods of G1 storming are likely on 21-23 Dec and again on 24-26 Dec influenced by CH HSS conditions.
- G2 (Moderate) storms are anticipated on 30 Dec, with G1 storming likely on 31 Dec due to upcoming negative polarity CH HSS influences.
🚀Upcoming Space Launches
December 10
- SpaceX Falcon 9 Block 5:
- Starlink Group 15-11 from Vandenberg Space Force Base (08:54 UTC)
- A batch of 27 satellites for the Starlink mega-constellation - SpaceX’s project for a space-based Internet communication system.
December 11
-
Rocket Lab Electron:
- Bridging The Swarm (NeonSat-1A) from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand (00:45 UTC)
- The NeonSat-1A is designed to test the constellation capabilities of South Korea’s Earth observation micro-satellite, improving technology for disaster monitoring.
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SpaceX Falcon 9 Block 5:
- Starlink Group 6-90 from Cape Canaveral Space Force Station (18:59 UTC)
- A batch of 29 satellites for the Starlink mega-constellation - SpaceX’s project for a space-based Internet communication system.
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China Aerospace Science and Technology Corporation Long March 12:
- Unknown Payload from Wenchang Space Launch Site, People’s Republic of China (22:53 UTC)
December 13
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China Aerospace Science and Technology Corporation Long March 6:
- Unknown Payload from Taiyuan Satellite Launch Center, People’s Republic of China (01:00 UTC)
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Rocket Lab Electron:
- Raise and Shine (RAISE-4) from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand (03:00 UTC)
- A JAXA satellite for on-orbit demonstrations of various demonstration components and equipment.
December 14
- SpaceX Falcon 9 Block 5:
- Starlink Group 15-12 from Vandenberg Space Force Base (05:20 UTC)
- A batch of 27 satellites for the Starlink mega-constellation - SpaceX’s project for a space-based Internet communication system.
Note: Launch dates and times are subject to change due to technical or weather considerations.
Maurice Stellarski