Earth's history is a roller-coaster of climate fluctuations, of relative warmth giving way to frozen periods of glaciation before rising up again to the more temperate climes we experience today.

Changes in Earth's tilt relative to the sun have governed the movements of giant ice sheets over the past 800,000 years, triggering the start and end of eight ice ages, new research suggests.

New research suggests that Earth’s orbital variations—the slow changes in its tilt, axial precession, and shape of its ...

The key players in these cycles are Earth's obliquity, the precession of its rotational axis and the shape of Earth's orbit around the sun. Breaking space news, the latest updates on rocket ...

The Earth’s axis is at right angles to the line from sun to Earth, the sun is directly over the equator and the lengths of ...

Following is a transcript of the video. 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 ...

and a 20,000-year cycle in the "wobble" — much like a top wobbles — of the Earth's axis (precession). All three of orbital cycles — called Milankovitch cycles — impact African climate on ...

precession, and obliquity, which have to do with the shape of the Earth’s rotation, the angle of the Earth’s axis, the angle that the Earth rotates around the sun, and how these things change ...

Earth's axis is currently tilted at a 23.5-degree ... For the study, the researchers plotted known changes in obliquity and precession over the past 800,000 years. They also plotted the expansion ...

A pattern of encroaching and retreating ice sheets during and between ice ages has been shown to match certain orbital parameters of Earth around the sun, leading to researchers being able to ...