In the mid-1990s scientists found evidence that Earth's inner core, a superheated ball of iron slightly smaller than the moon, was spinning at its own pace, just a bit faster than the rest of the planet.Now a study published in Nature Geoscience suggests that around 2009, thecore slowed its rotation to whirl in sync with the surface for a time - and is now lagging behind it.
#years #independent #independently #southern-california #temperature #earthquakes #columbia-university
[
add
]
[
|
|
...
]