More About Supernova and ancient bacteria fossils

More About Supernova and ancient bacteria fossils

Kreigh posted note about:
Supernova left its mark in ancient bacteria (Radioactive
iron may be first fossil imprint of a nearby cosmic explosion
by Alexandra Witze Nature news, April 15, 2013
http://www.nature.com/news/supernova-left-its-mark-in-ancient-bacteria-1.12797

A couple of more articles about Supernova and ancient
bacteria fossils are:

Supernova's Traces Seen In Deep-Sea Bacteria Fossils,
Research Suggests, Huffington Post, April 2013
http://www.huffingtonpost.com/2013/04/16/supernova-bacteria-deep-sea-fossils_n_3091277.html

Remnants of supernova explosion found in ancient magnetotactic
bacteria by John Hewitt, Physorg, April 16, 2013
http://phys.org/news/2013-04-remnants-supernova-explosion-ancient-magnetotactic.html

The paper is:
Knie, K., G. Korschinek, T. Faestermann, E. A. Dorfi, G. Rugel,
and A. Wallner, 2013, 60Fe Anomaly in a Deep-Sea Manganese
Crust and Implications for a Nearby Supernova Source. Physical
Review Letters. vol. 93, article 171103, 4 pp.
http://prl.aps.org/abstract/PRL/v93/i17/e171103

Yours,
Paul H.