T-Minus: Space-Cyber Briefing
T-Minus: Space-Cyber Briefing from N2K CyberWire is your source for understanding the critical security connections between space and Earth, linking the technologies, policies, and organizations shaping non-terrestrial networks and the expanded attack surface.Each week, we cover space and cyber developments that bridge technology, commerce, and innovation. We are the cybersecurity industry’s source for understanding how space-based infrastructure reshapes digital networks, risk, and resilience globally.T-Minus: Space-Cyber Briefing publishes every Sunday alongside the free Signals and Space newsletter covering the intersection of cybersecurity and space.
Episodes
June 7, 2026 • 26 mins
GPS constellations have become foundational in modern society supporting everything from navigation to financial services, making the impacts of GPS disruptions all the more concerning.
As reliance on these systems have grown, so too have efforts by threat actors to disrupt them through techniques such as jamming and spoofing. As these attacks have become more effective, they are becoming increasingly common, especially in conflic...
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May 31, 2026 • 26 mins
Since its original creation in the 1970s, GPS has evolved from a technology primarily used by the military to a foundation for modern society.
After the removal of selective availability for civilians in 2000, GPS’s value has significantly expanded. In the past two decades, nearly every critical infrastructure sector–telecommunications, transportation, energy, agriculture, emergency services, and financial services–relies on GPS ...
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May 24, 2026 • 21 mins
Despite being an indispensable technology, traditional GPS remains vulnerable to exploitation and is needed for an update.
In this week's episode, host Maria Varmazis sits down with Dr. Sean Gorman, CEO of Zephr.xyz, to discuss the current state of GPS. For decades, GPS has been a cornerstone technology for private, public, and military entities; however, through new technological advancements, companies and governments are looki...
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May 17, 2026 • 32 mins
For years, in-space internet capabilities were rarely worth the hassle. Now, that’s changing.
In today’s episode, Maria Varmazis and Ethan Cook sit down to discuss how internet data moves through space systems and its recent advancements. For decades, GEO satellites made up most of the marketplace; however, LEO satellites are changing the landscape improving connectivity and speeds.
Key sources:
In-space relay and WiFi servi...
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May 15, 2026 • 58 secs
T-Minus: Space-Cyber Briefing from N2K CyberWire examines the expanding attack surface created between Earth and orbit. Each week, we cover space and cyber developments that bridge technology, commerce, and innovation. We are the cybersecurity industry’s source for understanding how space-based infrastructure reshapes digital networks, risk, and resilience globally.
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In anticipation of our launch this weekend of T-Minus: Space-Cyber Briefing podcast, please enjoy this interview that CyberWire Daily's Dave Bittner had with Brandon Karpf. They discuss: "Japan’s space systems face growing cybersecurity threats."
Stay tuned for the first episode of T-Minus: Space-Cyber Briefing on Sunday with host Maria Varmazis and tune in each Sunday for new episodes!
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May 10, 2026 • 17 mins
This week on our Deep Space episode, Maria talks with Dave Roscoe, President of Satellite IoT for ORBCOMM and Skywave. They discuss the rollout of ORBCOMM’s latest purpose-built industrial satellite IoT network and what it signals for the future of mission-critical connectivity.
As satellite connectivity and device costs continue to decrease, organizations are rethinking where — and how — industrial IoT can be deployed across tra...
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May 3, 2026 • 22 mins
This week on our Deep Space episode, Maria speaks with TransAstra's CEO Joe Sercel about their recently demonstrated capture-bag technology aboard the ISS, drawing attention for its potential role in orbital debris cleanup. Debris removal is only the beginning. The real goal is far bigger: asteroid mining as future space infrastructure.
Sercel walks us through how the same capture system designed to safely enclose debris could...
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April 29, 2026 • 1 min
You can learn more about AWS in Orbit at space.n2k.com/aws.
Our guests on this episode are Tony Jacobs, Senior Solution Acceleration Manager at AWS, and Russell Glenn, Chief Strategy Officer at Viasat.
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Selected Reading
AWS Aerospace and Satellite
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April 26, 2026 • 26 mins
Please enjoy this encore while the team is out on vacation.
When satellites burn up upon re-entering Earth’s atmosphere, they release particles and gases, including metals like aluminium, which may affect atmospheric chemistry. This process, known as atmospheric ablation, is still poorly understood, but early evidence suggests metal content in the atmosphere is rising. To address these uncertainties, the UK Space Agency commis...
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April 19, 2026 • 34 mins
You can learn more about AWS in Orbit at space.n2k.com/aws.
Our guests on this episode are Rebecca Meads, Senior Solutions Architect at AWS, Chris Dowin, VP of Engineering at Pole Star Defense, and Tim Durmish, Director of DevOps at Pole Star Global.
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Be sure to follow T-Minus on LinkedIn and Instagram.
Selected Reading
AWS Aerospace and Satell...
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April 12, 2026 • 19 mins
This week on our Deep Space episode, we look forward to the return of Artemis II as we take a look toward the future of space manufacturing on our interview segment. At the time of recording, the crew of Artemis II was heading back to earth.
Maria speaks with Alastair McGibbon, Head of Semiconductors at Space Forge, about the growing role of low Earth orbit in advanced materials manufacturing. They explore why microgravi...
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April 5, 2026 • 40 mins
On this Deep Space episode, we share our NEXUS segment, where Parker Wishik of the Aerospace Corporation interviews Brandon Bailey, also from Aerospace, and Kassandra Vogel, Blue Origin’s Director of Cybersecurity Governance, Risk, and Compliance. They discuss space cybersecurity priorities, emerging threats, and industry collaboration, giving a great look at how the industry protects its missions. We also celebrate the h...
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March 29, 2026 • 33 mins
On this Deep Space episode, we share a conversation host Maria Varmazis had with Dr. Gabrielle Caswell at SpaceCom in January about Spaceport Australia, the spaceport that she owns, but if you can believe it, owning and running a spaceport is still barely scratching the surface of what she's working on. You can learn more on Gabrielle's website.
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Be ...
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March 22, 2026 • 22 mins
On this Deep Space episode, host Maria Varmazis speaks with Jeff Carr, who is President of the Griffin Communications Group. They discuss Jeff's and his family's storied space careers. Jeff shares his thoughts on the parallels between the US and the space program in 1968 with Apollo 8, and with the upcoming Artemis 2 mission in 2026.
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March 15, 2026 • 20 mins
On this Deep Space episode, host Maria Varmazis catches up with friend Tim Gagnon aka KSCartist and Susie Morris, Tim's long-time creative collaborator at A-B Emblem while at SpaceCom. Everyone loves a patch in aerospace, stick em on board or on your flight jacket, hand them out at meetups or conferences, buy em at your favorite space store, who doesn't love a space patch. And Tim and Susie talked to me about what goes into this u...
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March 9, 2026 • 23 mins
In this special Reporter’s Notebook, Maria Varmazis, host here at N2K CyberWire, takes listeners behind the scenes of our three-part series on Cyber Coalition 2025 in Tallinn, Estonia. After exploring real-time incident response, cross-border coordination, and the broader stakes of collective cyber defense, this episode offers a more personal, behind-the-scenes look at how the reporting came together.
Hosted by the NATO Cooper...
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March 8, 2026 • 18 mins
Happy International Women's Day! On this episode, Maria Varmazis caught up with Khalia Padilla, CEO at Imagine Engine, to discuss investing in optical space technologies and going global during Commercial Space Week 2026. She discusses two projects backed by Imagine Engine: one developing an optical transceiver that bridges radio-frequency and optical signals, supported by a NASA grant, and another building a modular, maneuverab...
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March 2, 2026 • 25 mins
In the final installment of our three-part series on Cyber Coalition 2025, Maria Varmazis, host here at N2K CyberWire, and Liz Stokes, CyberWire Producer, step back from the cyber range to reflect on what their time in Tallinn really meant. This episode moves beyond the mechanics of the exercise and into the broader stakes of collective cyber defense in an increasingly uncertain geopolitical moment.
Recorded two months ...
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February 28, 2026 • 16 mins
On this episode, Maria Varmazis caught up with Troy Morris, co-founder and CEO of KMI, during Commercial Space Week 2026. Troy recaps KMI's busy 2025 highlighted by an ISS demonstration that returned after over 200 days of testing, during which astronaut Suni Williams and crew helped evaluate a larger arm system designed to capture unprepared objects as a “tow truck for space.” And, more.
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