· space brief · 5 min read
Space Brief 17 Sep 2025
Highlights include China's recent satellite launch, advancements in nuclear propulsion, non-kinetic tech developments for maritime defense, SpaceX's direct-to-device spectrum tests, and maneuvering satellites for Space Force missions.

📰Top Stories
China Launches Yaogan 45 Satellite
China has successfully deployed its Yaogan 45 remote-sensing satellite using a Long March 7A rocket. The satellite, designed by the Shanghai Academy of Spaceflight Technology, was launched from the Wenchang Space Launch Center. This mission marks another significant step in China’s growing capabilities in space-based surveillance and remote sensing.
Read the full story: Space Daily
Advancements in Nuclear Propulsion by Ohio State Scientists
Ohio State University researchers are pushing the boundaries of space travel through the development of nuclear thermal propulsion systems. Using liquid uranium to heat rocket propellant, this technology could revolutionize deep space missions by enabling faster and more efficient travel beyond our current capabilities.
Read the full story: Space Daily
Non-Kinetic Technology for Maritime Defense Sought
The Defense Innovation Unit is seeking industry input to develop non-kinetic technologies for disabling small boats used against the U.S. Coast Guard and Navy. These innovations could play a crucial role in enhancing maritime security without relying solely on traditional arms, reflecting current defense strategy adaptations.
Read the full story: Breaking Defense
Maneuvering Satellites Target Space Force Missions
Defense companies Anduril and Impulse are collaborating to showcase a new class of maneuvering satellites aimed at supporting future Space Force missions. These satellites promise enhanced capabilities in orbital maneuvering, allowing for more versatile and dynamic space operations.
Read the full story: Breaking Defense
SpaceX to Test Direct-to-Device Spectrum
SpaceX is preparing to launch tests next year for its new direct-to-device service using spectrum recently acquired from EchoStar. This initiative is set to expand communication capabilities directly through satellites, offering enhanced connectivity solutions globally.
Read the full story: SpaceNews
Short-Term Pentagon Funding Extended
In a strategic move, U.S. Republicans have proposed a short-term Continuing Resolution (CR), keeping the Pentagon funded until November. While this extension excludes the $3.9 billion request for Columbia-class submarines, it ensures financial continuity for other critical defense programs.
Read the full story: Breaking Defense
🛰️Satellite Spotlight
- Satellite Name: QIANFAN-1
- NORAD ID: 60379
- Launch Date: August 6, 2024
- Mission: Designed for communications, QIANFAN-1 aims to enhance communication capabilities.
- Orbit: LEO (Low Earth Orbit)
- Operator: Yuanx
- Fun Fact: QIANFAN-1 is part of the burgeoning Qianfan constellation, which seeks to provide widespread communication services across various regions.
Track this satellite in real-time on our web app: Track QIANFAN-1
🌌Space Weather
Next 24 Hours
-
Radio Blackouts Probability
- Minor: 30
- Major: 1
- Risk: None
-
Solar Radiation
- Probability: 1
- Risk: None
-
Geomagnetic Storming
- Scale: 0
- Impact: none
- Activity: Low
-
Impact Summary
- No risk of radio blackouts in the next 24 hours.
- No risk of solar radiation storms is forecasted.
- Geomagnetic outlook shows ongoing low activity, but a chance for minor storming may occur.
- Expect isolated Minor-Moderate radio blackouts through 19 Sept.
Long Term Forecast
- Impact Summary
- Solar activity is predicted to remain low with potential for isolated M-class flares during the forecast period.
- No significant proton events are expected at geosynchronous orbit.
- Increased levels of electron flux may influence satellite operations from 18-21 Sept and 06-11 Oct.
- Geomagnetic activity is likely to range from active to G2 (Moderate) storm levels at specific times due to recurrent high-speed solar wind streams.
- Most days will see quiet to unsettled geomagnetic conditions, benefiting ground-based radars and telescopes.
Upcoming Space Launches
September 17
- SpaceX Falcon 9:
- Starlink Group 17-12 from Vandenberg SFB, CA, USA (15:41 UTC) A batch of 24 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
September 18
- SpaceX Falcon 9:
- Starlink Group 10-61 from Cape Canaveral SFS, FL, USA (09:30 UTC) A batch of 28 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
- Blue Origin New Shepard:
- NS-35 from Corn Ranch, Van Horn, TX, USA (12:30 UTC) NS-35 will fly more than 40 scientific and research payloads to space and back, including 24 experiments from NASA’s TechRise Student Challenge.
September 21
- SpaceX Falcon 9:
- Starlink Group 10-27 from Cape Canaveral SFS, FL, USA (09:20 UTC) A batch of 28 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
- SpaceX Falcon 9:
- NROL-48 from Vandenberg SFB, CA, USA (17:37 UTC) Eleventh batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office.
September 22
- Rocket Lab HASTE:
- JENNA from Wallops Flight Facility, Virginia, USA (23:45 UTC) Sub-orbital launch under Rocket Lab’s Hypersonic Accelerator Suborbital Test Electron (HASTE) program, details TBD.
September 23
- SpaceX Falcon 9:
- IMAP & others from Kennedy Space Center, FL, USA (11:32 UTC) IMAP (Interstellar Mapping and Acceleration Probe) is a NASA mission to study interactions between solar wind and the local interstellar medium.
September 25
- SpaceX Falcon 9:
- Starlink Group 17-11 from Vandenberg SFB, CA, USA (01:57 UTC) A batch of 24 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
- SpaceX Falcon 9:
- Starlink Group 10-15 from Cape Canaveral SFS, FL, USA (08:36 UTC) A batch of 28 satellites for the Starlink mega-constellation - SpaceX’s project for space-based Internet communication system.
- United Launch Alliance Atlas V 551:
- Project Kuiper (KA-03) from Cape Canaveral SFS, FL, USA (12:09 UTC) Project Kuiper is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, managed by Kuiper Systems LLC, a subsidiary of Amazon.
Note: Launch dates and times are subject to change due to technical or weather considerations.
Maurice Stellarski