All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
We would like to draw your attention to the fact that knowing whether or not the sky has edges and the description of the edges does not benefit the person in any way. It is a waste of time to ask about such matters and one should only ask about matters that entail actions.
These two verse were mentioned in the context of describing the events of the Hereafter and the terrifying events that will take place therein. Understanding the magnitude of horror that people will feel on that day is understood from the verses, even if we do not know the details of how things will happen.
Allah knows best.