Yes I have, an eclipse can happen up to 3 times a year based on the earth and moons orbit. It is when the moon lines up with the sun in has the illusion of covering it. It can make certain parts of the earth look like its night time.
The Preamble states that the Constitution exists “to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, [and] promote the general Welfare.”