/sci/ - Science & Math

>Do we know that the sun will rise this morning just because we have observed it happen many times before?

We don't.

Actually, at some latitudes there's no reason to expect it to rise tomorrow at all.

However since we understand orbital mechanics well enough to predict the next sunrise to a reasonable accuracy and there don't seem to be any outside influences that could prevent it before tomorrow morning, there's an excellent chance that the vast majority of the planet will experience a sunrise tomorrow.