Nightfall by Isaac Asimov - The Science Fiction Hall of Fame Volume I

The planet Lagash is situated in a star system containing six suns.  Consequently the people living there have never experienced night.  Darkness is completely unknown however, every 2,000 years the stars align and are eclipsed by another planet.

We take for granted knowing the night sky which makes for an interesting twist to discover people who've never known stars.

We are told the terrible history of this solar cycle and it's effect on the inhabitants of Lagash.

Written 72 years ago it is still fresh and relevant today.

September 1941

Isaac Asimov