Mysterious new substance possibly discovered inside Earth's core
By Ben Turner, Live Science, February 2022
[www.livescience.com]
The planet's core could be a mushy mix of solid and liquid.

New "hidden world" discovered in Earth's inner core
By Joanna Thompson, Live Science, October 27, 2021
[www.livescience.com]
The core isn't a "boring blob of iron" after all.

The paper is:

Butler, R. and Tsuboi, S., 2021. Antipodal seismic
reflections upon shear wave velocity structures within
Earth's inner core. Physics of the Earth and Planetary
Interiors, 321, no.106802.
[www.sciencedirect.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)