"The most probable root cause for the loss of ship was identified as a harmonic response several times stronger in flight ...

SpaceX has published an explanation for the debris from the Falcon 9 second stage that fell over Poland last week. Because of an oxygen leak, the expected deorbit burn didn't occur.

In July 2024, a Falcon 9 launch of Starlink satellites suffered a liquid oxygen leak that prevent the upper stage from performing a circularization burn. Its payload of Starlink satellites ...

a small liquid oxygen leak developed, which ultimately drove higher-than-expected vehicle body rates. As a result, following safe mission conops [concept of operations], the deorbit burn was not ...

For nearly a year, SpaceX has been trying out something new: super-cooling the liquid oxygen (LOX) which is a key ingredient in rocket fuel. It's called deep-cryo LOX, and the idea has been around ...

But the second stage failed to complete its second burn after a liquid oxygen leak. “Falcon 9’s second stage performed its first burn nominally, however, a liquid oxygen leak developed on the ...

As with many of the early rockets that launched man into space, [Robert] uses kerosene and liquid oxygen for fuel. This man knows his stuff.