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.

Recently, the results of a 250-day experiment to refine a particular motion of our planet were published in the journal Science Advances. Lead author K. Ulrich Schreiber from the TUM Institute of ...

Scientists in Germany have used a highly sensitive underground ring laser to track Earth's axial wobble without relying on telescopes, satellites, or external reference signals. The researchers from ...

If you feel like there's less time in the day, you're correct. Scientists recorded the shortest day on Earth since the invention of the atomic clock. Our planet's rotation measured in at 1.59 ...

Last month I wrote about why the Tropic of Cancer and the Tropic of Capricorn are related to the 23.5 degree tilt of the Earth’s axis: The Sun’s furthest point north or south, called the solstice, is ...