Russia Just Blew Up a Satellite, and Now the ISS Crew Is Dodging Debris

Yesterday Russia fired a direct-ascent missile at one of its own defunct satellites, Kosmos 1408, and blew it into more than 1,500 trackable pieces of debris. Those pieces are now in orbits that cross paths with the International Space Station, and the crew had to scramble into their docked spacecraft as a precaution while the station passed through the cloud repeatedly. NASA and the U.S. State Department have both condemned the test, and honestly, it’s hard to overstate how reckless this is.

Here’s the thing about anti-satellite (ASAT) tests: they’re not new. The US, China, and India have all done versions of this before. But the physics of blowing something up in orbit doesn’t care whose flag is on the missile. When you hit a satellite with a kinetic interceptor at orbital velocities, you don’t get two pieces — you get thousands, most too small to track individually but still moving fast enough to punch through a spacecraft hull or a spacesuit. And low Earth orbit isn’t infinite. Debris from a test like this can stay up there for years, sometimes decades, depending on the altitude, slowly decaying while it keeps threatening everything else that flies through that band of space.

Why this one is worse

Kosmos 1408 was a fairly large satellite (a Soviet-era Tselina-D signals intelligence bird from the 1980s), which means more mass turned into more fragments. And it happened in an orbital regime that overlaps with a lot of active traffic, including a crewed station with seven people currently living on it. That’s not a hypothetical risk calculation — it’s astronauts physically having to shelter because ground controllers couldn’t rule out a strike during a close pass.

This is exactly the scenario space policy people have been warning about for years: Kessler syndrome, the idea that debris-generating events can cascade, with each collision creating more debris that raises the odds of the next collision. We’re nowhere near a runway cascade scenario from one test, but every event like this pushes the baseline risk up a notch, and it’s a risk that everyone flying in LEO shares, not just the country that pulled the trigger.

What happens next is mostly a diplomatic and tracking problem. Space-monitoring networks will spend the next few weeks cataloguing the new fragments and feeding them into conjunction-assessment models so operators — from NASA to SpaceX to commercial satellite companies — know when to dodge. Expect renewed calls for an international norm or treaty banning destructive ASAT tests, something that’s been proposed before without much traction. Whether this incident is the one that actually moves that needle, or just another entry in a growing list of near-misses, is an open question. Given how crowded orbit is getting with megaconstellations coming online, it’s a question we probably can’t keep deferring forever.