This edition of PassW0rd (originally broadcast on radio via Resonance FM, but now also available on video here on Tech TV) explores the rapidly changing and increasingly contested nature of outer space, moving far beyond its traditional image as a realm of science and exploration. While a recent UK House of Lords report highlights space as an economic opportunity for Britain, the programme argues that it overlooks one of the most urgent realities: the steady escalation of conflict in orbit.

Drawing on research from the Cyber Security Research Institute (https://www.csri.info/), the programme reveals mounting evidence that foreign powers are systematically targeting satellite systems through cyberattacks, electronic interference, and hostile manoeuvres. These actions, while often falling short of outright warfare, represent a form of strategic intimidation aimed at demonstrating the ability to disrupt global communications, navigation, and intelligence systems. The war in Ukraine is presented as a pivotal case study, showing how satellites have become integral to modern conflict. Cyberattacks against satellite networks, including the disabling of communications used by Ukrainian forces, underscore how space infrastructure is now a frontline target.

Clemence Poirier of ETH Zurich distinguishes between the long-standing militarisation of space—using satellites to support military operations on Earth—and the more dangerous, emerging weaponisation of space, which involves placing weapons in orbit. While there is not yet an armed conflict in space, states are increasingly testing anti-satellite capabilities, conducting close-proximity “inspection” missions, and developing dual-use technologies such as robotic arms that can serve both civilian and military purposes. These actions intensify during periods of geopolitical tension and function as strategic signalling rather than purely tactical attacks.

The programme also highlights the growing cyber vulnerability of satellite systems. Tom Pace of cybersecurity firm NetRise explains that satellites rely on ground infrastructure and uplinks that can be hacked, spoofed, or disrupted. Attacks may aim not only to disable satellites but also to distort or poison the data they transmit, undermining everything from military coordination to civilian communications, navigation, and broadcasting. Given society’s deep dependence on satellite-enabled systems, such interference poses systemic risks.

A particularly stark threat comes from electromagnetic pulse (EMP) weapons. Author and EMP expert William Forstchen describes how a nuclear detonation in space could disable satellites and collapse electrical grids across vast regions, potentially leaving much of the population without power for years. Such scenarios revive Cold War concepts of mutually assured destruction, now extended into orbit. Beyond conflict, the programme explores the economic and political stakes of space. Countries like Estonia see space and cybersecurity as opportunities to move up global value chains, while experts such as Dr Bleddwyn Bowen and Professor Steven Freeland explain how outdated international treaties struggle to govern modern realities like resource extraction, commercialisation, and private actors in space.

Finally, the programme ends on an unsettling note: humanity may already be spreading life into the universe. Former NASA scientist Bill Miller argues that microbes unintentionally carried on spacecraft could make humans agents of “panspermia,” seeding life beyond Earth without fully understanding the consequences.

Taken together, PassW0rd presents space not as a distant frontier, but as a critical, fragile extension of Earth—one where conflict, commerce, and unintended consequences are unfolding faster than our ability to regulate or fully comprehend them.