She was hit by space junk
As if we didn't have enough to worry about, time to break out the titanium umbrellas. Space junk is just lying in wait, until you least expect it, then BAM! She never saw it, I never touched her.
According to our leading scientists, there's 9000 pieces of space junk looking for any opportunity to attack. Over 5500 tons, up there biding their time. What's worse is that even without sending any more satellites and corpses of Star Trek personalities or whatever up there, space junk is replicating on its own. Apparently space junk is colliding with other space junk, spawning still more space junk. Angry space junk.
Some say it is a North Korean plot, from when they put up their one satellite "Pearless Leader 1". They knew it wouldn't work at all, but it would be big and erratic and antisocial enough to bash into everybody else's satellites, thus creating space junk.
But that doesn't really matter anymore, now does it? All that's left to do now is take cover.

