The Comment, similar in size and shape to the one that ended the era of the Dinosaurs, headed towards the planet Earth at a considerable speed; and, even though sound can’t actually travel through space – as it’s a void – you must just suspend your disbelief for a moment and consider that science has got it wrong (even though it hasn’t) and this concept is a possibility.
What the actual Comment consists of is not known – largely due to the absence of detail available – and so it will inevitably disappoint.
Isn’t Science wonderful?