Image courtesy of muratart/Shutterstock
Joel Kontinen
According
to evolution, did a supernova blow up some 10 millions years ago?
There are
signs deep beneath the Pacific Ocean that an exploding star once sent cosmic
rays blasting out towards Earth, and now we have an idea of which stars may be
to blame have sent cosmic rays hurtling at Earth, ang star may have sent cosmic
shrapnel flying to hit Earth 10 million years ago, and astronomers have now in arrowed
down the most likely culprits behind this interstellar incident.
Earlier
this year, Dominik Koll at the Helmholtz-Zentrum Dresden-Rossendorf
in Germany and his colleagues discovered a spike of radioactive
beryllium buried in metallic rocks 5 kilometres beneath the Pacific Ocean,
which they dated to just over 10 million years old. This form of
beryllium is produced only when cosmic rays smash into Earth’s atmosphere, so
Koll and his team theorised that one possible cause could be from a supernova
that exploded long ago.
Source:
Alex Wilkins 2025 Did a star blow up and hit Earth 10 million years ago? | New Scientist 26 September
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