Why length of a day might get changed on Earth

A new study reveals that Earth's inner core began slowing its rotation in 2010, potentially altering the length of a day by fractions of a second. Analyzing seismic data and nuclear tests, researchers provided "unambiguous evidence" of this slowdown, sparking debate on core dynamics and Earth's rotation.

Why length of a day might get changed on Earth
A new study reveals that Earth's inner core began slowing its rotation in 2010, potentially altering the length of a day by fractions of a second. Analyzing seismic data and nuclear tests, researchers provided "unambiguous evidence" of this slowdown, sparking debate on core dynamics and Earth's rotation.