If they used what we Earthlings call "computerized tomography" or CT scans, then all may be well for Bette and Daniel. But alas, that wouldn't explain the distress signals and their sudden cut-off.
And if the used Magnetic Resonance Imaging (MRI), then B&D as we know them are dead, all their data storage wiped clean.
My gut feeling, based on the distress signals, is that they were dissected.
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