[Rockhounds] Supernovae Plutonium Found On Ocean Floor

[Paul]

Freshly Made Plutonium From Outer Space Found On Ocean Floor
By Nell Greengrocer, NPR, May 13, 2021
https://www.wrkf.org/2021-05-13/freshly-made-plutonium-from-outer-space-found-on-ocean-floor

Scientists Find Plutonium Made in Outer Space on Ocean Floor
Research suggests the rare, heavy element may have been created
by the collision of two neutron stars, Smithsonian Magazine
https://www.smithsonianmag.com/smart-news/scientists-find-plutonium-made-outer-space-deep-sea-crust-180977739/

The paper is:

Wallner, A., Froehlich, M.B., Hotchkis, M.A.C., Kinoshita, N.,
Paul, M., Martschini, M., Pavetich, S., Tims, S.G., Kivel, N.,
Schumann, D. and Honda, M., 2021. 60Fe and 244Pu deposited
on Earth constrain the r-process yields of recent nearby
supernovae. Science, 372(6543), pp.742-745.
https://science.sciencemag.org/content/372/6543/742.abstract

Yours,

Paul H.