Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second.

Earth recorded the shortest day ever on July 29 when it completed a full spin in 1.59 milliseconds less than its usual 24-hour rotation.

The Earth spins on its axis, completing a full revolution every day. By why does it do this? One of the most common misconceptions in physics is the belief that constant motion requires a constant ...

CAPE CANAVERAL, Fla. (AP) — The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck, scientists said Tuesday.

Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For the first time in history, world ...

CAPE CANAVERAL, Fla. (AP) — The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck, scientists said Tuesday. A team of ...

By SETH BORENSTEIN AP Science Writer Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second. For ...

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck.

New observations show the asteroid that won’t hit Earth resembles a spinning hockey puck Scientists said it most likely originated in the main asteroid belt between Mars and Jupiter, and is rich in ...