Nightfall

Isaac Asimov

“Of course,” continued Beenay, “there’s the catch that life would be impossible on such a planet. It wouldn’t get enough heat and light, and if it rotated there would be total Darkness half of each day. You couldn’t expect life -- which is fundamentally dependent upon light -- to develop under those conditions.


He slammed the heavy table up against the door as he spoke, and in two minutes had built a barricade which made up for what it lacked in beauty and symmetry by the sheer inertia of its massiveness.