Early in the history of our solar system, something mysteriously knocked Earth slightly off its axis. So today we tilt at 23.5 degrees. But what would happen if we tilted even more? What if Earth ...

Explore the extreme seasonal changes and climate shifts of an Earth with its axis tilted by a dramatic 90 degrees.

Kelly, A. O., and Dachille, Frank, Target: Earth—(The Role of Large Meteors in Earth Science), 175 (published by the authors, 1953).

There are only two times of the year when the Earth's axis is tilted neither toward nor ... 8 minutes at 30 degrees latitude, to 12 hours and 16 minutes at 60 degrees latitude, the NWS said.

Downtown Sacramento sits at 38.6 degrees north of the equator and will ... At exactly 2:01 a.m. Pacific Time, Earth's axis will be perfectly vertical and the sun's most direct energy will be ...