As it turns out Celestia just wanted to hug the only chicken she isnt afraid of, Scootaloo!
She was also sun taning on the sun it’s self beacuse why not? (Yes this is refrenceing the mlp manga)
Anyway, the chicken looks ok and is of course happy about being shot out of a cannon so it all worked out in the end anyway!
Celestia may have also been the mastermind behind this cutiemark attempt to prank scootaloo beacuse, if you got cannons that can harmlessly send ponys to the sun and moon, why not use them?