It is not an unknown scenario in science fiction; a sun that stays stable in the sky of a planet. Humans (or other sapient species) without space suits battling hot deserts, cold dark night sides, or the lush land at the never moving border of night and day.
Tidal locking (or captured rotation) occurs when the gravitational gradient makes one side of an astronomical body always face another, an effect known as synchronous rotation. For example, the same side of the Moon always faces the Earth.
Is life for humans and our supporting species possible on a planet where the sun does not move across the sky?
Looking for answers with credible science, best case scenario, with an oxygen generating biosphere evolving naturally. Is it possible or does some science rule out the possibility?