What unit of measurement do scientists use to measure distances in space?

The light year Which means the distance to which light has to travel inside one year with a speed which equals the speed of light in vacuum, that is 300000 k. M/sec The parsec ("parallax of one arcsecond") equal to just under 31 trillion kilometres (about 19 trillion miles), or about 3.26 light years AU (Astronomical Unit) is mainly used within the Solar System and is equal to the mean distance between the Earth and the Sun. It is approximately 150 million kilometres (93 million miles).

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.