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.

Earth rotates on its axis every 23.9 hours, defining day and night for surface dwellers. This axis of rotation is tilted 23.4 degrees away from the plane of Earth's orbit around the sun ...

In less than 20 years, human activities—especially the pumping of groundwater—have caused the Earth’s axis to shift by about 31.5 inches (or 80 centimeters), according to a new study.

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.

Illinois is located about 40 degrees north of the equator ... The equinox is the moment when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount ...