Episode Details

Space is no longer peaceful—it’s a high-stakes battlefield. Physicist Laura Grego warns that satellites, vital for everything from GPS to food delivery, are also military tools and dangerously vulnerable. While the 1967 Outer Space Treaty promised peace, rockets can carry nukes, and satellites enable spying and targeting. With no country having intentionally destroyed another’s satellite yet, nations are quietly developing weapons to disable them—without debris, making the threat even more insidious. Worse, our nuclear early warning systems depend on these same satellites, leaving leaders with mere minutes to decide on retaliation in a potential crisis. Grego calls this a “doomsday system” we’ve built—and one we can dismantle. Instead of chasing Mars, she urges humanity to de-escalate, protect our orbital commons, and prioritize survival over spectacle.

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