That day, a Wednesday, was 1.59 milliseconds shorter than ever before. It happened because the Earth isn't perfectly spherical and can "wobble" on its axis. The Earth had its shortest ever day this ...

A revolutionary new study led by Technical University of Munich and University of Bonn scientists has succeeded in measuring the subtle wobble of the Earth’s axis without using complex radio astronomy ...

Earth's axis — the invisible line around which it spins — is bookended by the north and south poles. The axis tilts, and thus the pole shift, depending on how weight is distributed across Earth's ...

Millimeter deviations from the expected wobble of the Earth's axis are giving geophysicists clues to what happens 1,800 miles underground, at the boundary between the Earth's mantle and its iron core.

When you picture the Earth spinning in space you imagine it rotating just like a globe does, with two static poles and a line running from north to south. Unfortunately, things aren't nearly that ...

Millimeter deviations from the expected wobble of the Earth’s axis are giving geophysicists clues to what happens 1,800 miles underground, at the boundary between the Earth’s mantle and its iron core.