Earth's rotation does fluctuate slightly, but it's not necessarily alarming, here are some things to know.
1
Earth's rotation isn't perfectly constant, the moon's gravity, ocean currents and atmospheric movements cause subtle variations.
2
These changes are measured in milliseconds, imperceptible in daily life, a millisecond is one-thousandth of a second.
3
Earth's rotation is slowing down very gradually, by fractions of a second per century.
4
Earthquakes and large volcanic eruptions can have a more significant, though still minor, impact on rotation.
5
These changes won't disrupt our day/night cycle drastically in the foreseeable future.
6
Studying these variations helps us understand Earth's interior and climate change, and even predict future earthquakes.
7
Scientists closely track Earth's rotation. While it's interesting, there's no need for immediate alarm.