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FYI: Supernova link to ancient extinction [2002] http://physicsworld.com/cws/article/news/2002/feb/13/supernova-link-to-ancient-extinction http://physicsworld.c
by mathoff 10y ago
FYI: Supernova link to ancient extinction [2002] http://physicsworld.com/cws/article/news/2002/feb/13/supernova-link-to-ancient-extinction http://physicsworld.com/cws/article/news/2002/feb/13/superno...
- vanderZwan 10y agoSo that article also mentions this Fe60, and the same time window. What did the recent article add? Is it "just" a confirmation of the hypothesis?
- mathoff 10y ago> What did the recent article add? Yes. This is my question as well.
- iplaw 10y agoThe 2002 article mentions that the radioisotope was found in the crust. The new article mentions that the radioisotope was found in a biologically-produced magnetite crystal. I think that the general thesis is that -- yes, we are made of star stuff (that the supernova material deposited on Earth has seen verified biological uptake).