Earth 90 Degree Tilt 2025 Season. If earth's axis of rotation were tilted 90 degrees, what type of seasons would be observed at the equator. Locations below the antarctic circle (66.5 degrees south latitude) experience 24 hours of darkness.
That slight tilt has big implications for everything from seasons to glacier cycles. 90 degrees minus the tilt of earth’s axis) receive 24 hours of sunlight.