The spacecraft, known as USA 32 or Farrah III, was launched by the National Reconnaissance Office (NRO) in 1988. Its mission, which was only fully declassified earlier this year, was to intercept Soviet radar and radio signals from space, according to Futura. The cylindrical spacecraft, whose shape has been described as a giant "tuna can," likely stopped functioning decades ago and has been silently circling Earth ever since. (It was nicknamed after actor Farrah Fawcett, in line with the NRO's former custom of naming its satellites after famous figures from the 1970s and '80s.)
Other organizations have since confirmed the fragmentation event, including the private satellite-tracking company s2a systems, which photographed the largest remaining piece of USA 32 in orbit.
USA 32 was launched on a Titan II rocket, similar to the one in this photograph, which launched astronauts on board NASA's Gemini 11 mission in 1966. (Image credit: NASA)
It is still unclear what happened to the Cold War-era spacecraft, but there are several potential explanations.
Another leading theory is that the satellite died of old age. It was likely not designed for long-term spaceflight, and after nearly four decades of being exposed to the harsh conditions of LEO, the spy craft may have simply broken down, similar to the demise of the NOAA-17 satellite in 2021.
But it is also too soon to rule out that the satellite was hit by some form of anti-satellite weaponry, according to Spaceweather.com. Earlier this month, U.S. Air Force Secretary Troy E. Meink revealed, for the first time, that the U.S. had launched unspecified weapons into orbit, and experts have long suspected that other countries, including China and Russia, possess similar technologies. (The latter country has already destroyed one satellite using Earth-based weaponry.)
A simulation from Spaceweather.com suggests that the debris from the explosion could have dispersed across the satellite's orbital pathway within 24 hours of its breakup. (Image credit: Spaceweather.com)Researchers will likely be able to establish the cause of the satellite's breakup by reverse-engineering the incident — first by identifying the resulting fragments, and then by retracing those pieces' trajectories back to the original explosion. However, this could take months, if not years. (For example, scientists are still trying to piece together what happened to the Boeing-made Intelsat 33e satellite, which similarly shattered out of nowhere in 2024.)
"The collision threat is real"
The region of LEO where USA 32 exploded is thought to be home to at least 200 other satellites, and it is already littered with debris from a 2009 collision between American and Russian satellites. As a result, "the collision threat is real" for spacecraft in this area, Spaceweather.com representatives wrote, especially as the newly created fragments remain unquantified.
As the number of Earth-orbiting spacecraft increases, so too does the risk that they will start colliding with one another. (Image credit: ESA/AFP via Getty Images)
Although the ISS and China's Tiangong space station are currently out of reach of the debris field, the fragments may shift over time as Earth's gravity and atmospheric drag pull them closer to our planet. In that case, the stations may have to carry out maneuvers to dodge the debris, as they have done dozens of times before.
Could it happen again?
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Some experts warn that, if we continue on our current path, we may be doomed to reach an irreversible tipping point, known as the Kessler syndrome, where the accumulation of space junk means we can no longer launch anything into space.
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