LOUISVILLE, Colo.–(BUSINESS WIRE)–Mar 31, 2025–
Sierra Space, a leading commercial space company and defense tech prime that is Building a Platform in Space to Benefit Life on Earth ® and protect economic freedom in the Orbital Age ®, announced today a successful demonstration of the company’s Resilient GPS (R-GPS) technology for the U.S. Space Force (USSF). This major accomplishment, generating all GPS navigation signals required for the R-GPS mission, was achieved in collaboration with General Dynamics Mission Systems. This technology targets the increased need for more resilient GPS systems that protect the United States against adversarial threats like jamming and spoofing of the current GPS infrastructure.
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GPS technology plays a crucial role in daily life, supporting everything from civilian services such as smartphone map applications to vital military and defense uses. However, as adversarial threats become more advanced, there is an increasing need for more resilient GPS infrastructure. To address this, the USSF’s Quick Start program is developing concepts for integrating a layer of smaller and more affordable satellites into the existing GPS framework. This R-GPS layer of smaller GPS satellites would be capable of rapid fielding to counter evolving threats. Sierra Space’s expertise in small satellite technology provides a competitive edge in achieving this goal.
“This successful demonstration is a testament to the innovative capabilities of Sierra Space and General Dynamics,” said Erik Daehler, Vice President of Sierra Space Defense. “This milestone not only underscores our commitment to advancing GPS technology, but positions Sierra Space to be optioned for Phase One, the next step of the U.S. Space Force’s Quick Start program.”
In September 2024 Sierra Space announced a “Quick Start” R-GPS contract awarded by the USSF Space Systems Command (SSC) to develop design concepts for smaller, more affordable GPS satellites. Later In 2024, Sierra Space successfully passed an internal Systems Requirements Review. Now, a few short months after the program began, Sierra Space has passed this even larger milestone, providing a positive demonstration of the R-GPS program’s technology.
“Our country needs GPS satellites with more capability and resiliency at a faster rate, and we are proud to bring our mature, mission-ready and proven portfolio of capabilities to Sierra Space to help the U.S. Space Force achieve these objectives quickly,” said Amy Johnson, vice president and general manager for the Space, Cyber & Intelligence Systems line of business with General Dynamics Mission Systems.
The demonstration focused on the satellite’s hardware, firmware, and software that generates ‘YMCA’ waveforms including P(Y), M-code, and C/A signals at L1 and L2 frequencies. This achievement is a significant step forward in ensuring that the GPS navigation signals generated by R-GPS satellites will be accurate, secure, and compatible with the devices that millions of people use every day.
About Sierra Space
Sierra Space is a leading commercial space company at the forefront of innovation and the commercialization of space in the Orbital Age ®, building an end-to-end business and technology platform in space to benefit and protect life on Earth. With more than 30 years and 500 missions of space flight heritage, the company is reinventing both space transportation with Dream Chaser®, the world’s only commercial spaceplane, and the future of space destinations with the company’s inflatable and expandable space station technology. Using commercial business models, the company is also delivering orbital services to commercial, DoD and national security organizations, expanding production capacity to meet the needs of constellation programs. In addition, Sierra Space builds a host of systems and subsystems across solar power, mechanics and motion control, environmental control, life support, propulsion and thermal control, offering myriad space-as-a-service solutions for the new space economy.
About General Dynamics Mission Systems
General Dynamics Mission Systems provides mission-critical solutions for defense, intelligence and cybersecurity customers across all domains. Headquartered in Fairfax, General Dynamics Mission Systems employs approximately 12,000 people worldwide. More information about General Dynamics Mission Systems is available at gdmissionsystems.com.
On March 31, 2025, Sierra Space announced a successful demonstration of the company’s Resilient GPS (R-GPS) technology for the U.S. Space Force. (Graphic: Sierra Space)
OTTAWA, Ontario (AP) — Linus Ullmark made 31 saves, Shane Pinto and Jake Sanderson scored and the Ottawa Senators beat Tampa Bay 2-1 on Thursday night, with the Lightning wrapping up a playoff spot after the game when Colorado beat Columbus.
Pinto opened the scoring for the Senators with 6:15 left in the first period, and Sanderson made it 2-0 on a power play at 5:17 of the second. Brandon Hagel got one back for Tampa Bay at seven minutes of the second with his 34th of the season.
Andrei Vasilevskiy stopped 17 shots for Tampa Bay, playing the second game of a four-game trip. The Lightning had won four in a row.
Lightning: Tampa Bay generated a number of chances on the power play, but was unable to capitalize.
Senators: Ottawa struggled defensively at times and relied heavily on Ullmark.
With Ottawa up 2-1, Ullmark made a huge save on Jake Guentzel with 23 seconds remaining in the second period.
The Lightning are at Buffalo on Saturday night. The Senators host Florida on Saturday and Columbus on Sunday night.
AP NHL:
Tampa Bay Lightning left wing Nick Paul (20) looks to shoot as Ottawa Senators defenceman Nikolas Matinpalo (33) falls to the ice during third period NHL hockey action in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Tampa Bay Lightning centre Brayden Point (21) is stopped by Ottawa Senators goaltender Linus Ullmark (35) during first period NHL hockey action in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Tampa Bay Lightning centre Anthony Cirelli (71) reaches for the puck as Ottawa Senators goaltender Linus Ullmark (35) covers it during first period NHL hockey action in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Tampa Bay Lightning left wing Nick Paul (20) moves in on Ottawa Senators goaltender Linus Ullmark (35) during first period NHL hockey action in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Ottawa Senators centre Shane Pinto (12) celebrates his goal with teammates on the bench during first period NHL hockey action against the Tampa Bay Lightning in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Tampa Bay Lightning goaltender Andrei Vasilevskiy (88) watches the puck enter his net on a goal by Ottawa Senators defenceman Jake Sanderson, not seen, during second period NHL hockey action in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Tampa Bay Lightning defenceman Nick Perbix (48) dives as he battles for the puck with Ottawa Senators left wing Fabian Zetterlund (20) during second period NHL hockey action in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
Ottawa Senators defenceman Jake Sanderson, centre-right, celebrates his goal with teammates during second period NHL hockey action against the Tampa Bay Lightning in Ottawa, on Thursday, April 3, 2025. (Spencer Colby/The Canadian Press via AP)
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