Technical Terms Earth Orientation Parameters (EOP): Quantitative measures that describe the rotation of the Earth, including polar motion, LOD variations, and celestial pole offsets.

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Once a year, an astronomical alignment ushers in this seasonal change. Like its winter counterpart, the summer solstice is celebrated across the world—and shrouded in myth.

This is not the only instance where Earth’s rotation has been influenced by a change in mass distribution. NASA and other agencies have previously measured how events such as glacial melting and ...

Until 2020, Earth's rotation had been gradually slowing down, and the shortest ever day recorded was just 1.05 milliseconds under 86,400 seconds. However, on July 19, 2020, Earth rotated 1.47 ...

Despite oceans covering more than seventy percent of our planet’s surface, humanity has clearer maps of the lunar terrain than our own ocean floors. This disparity arises from the immense challenges ...

Cargos are unloaded from a container ship at the container terminal of the Lianyungang Port in East China's Jiangsu province, on Jan 14, 2021. [Photo/Xinhua] Private Chinese businesses are seeing ...

Steve Kerr's rotation lacks genuine size, which has been a legitimate issue for multiple years. However, with Draymond Green in the final stages of his career, Kerr can't rely on him to anchor the ...

The two solstices and two equinoxes are simply precise moments in time when the Sun is in direct alignment with three distinct bands of latitude. Their dates can vary by a day or two each year since ...