"The Earth sits comfortably in its orbit tilted on its axis at 23 degrees. Knock the planet over and... It wouldn‚Äôt be the Earth as you know it. Long Pompeii Victims Weren’t Who We Thought They Were ...

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 ...

An astronomer takes us on a tour of the universe to learn about the birth of stars and planets and how they get their spin.

Pettit added: “Visible are circular star trails above the earth limb created not from Earth rotation, but from our orbital ...

Since 1980, Earth's north and south poles have drifted about 13 feet. The poles are where the planet's surface intersects with its axis of rotation — the invisible line running through the ...

Exactly where the axis of rotation meets Earth’s surface moves by about 30 feet (10 meters) per hundred years. According to the paper, that’s down to both the melting of the ice caps and the m ...

That's how quickly Earth rotates on its axis, from West to East. And that rotation is largely responsible for the distribution of every desert, forest, and swamp on the planet. So, let's do a ...

Over geological time, the gravitational pull of Sun and Moon, growing or shrinking ice sheets and the slow drift of the continents will move mass around and cause Earth's axis to shift ...

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