Dangerous universe

Our Dangerous Universe! Dr. Brian Thomas Washburn University Topeka, KS Woodcut c. 1668 (comet) NASA image - GRB event NASA image – Solar Flare

We live in a BIG Universe… ,[object Object],[object Object],[object Object],[object Object],[object Object]

It’s BIG and DANGEROUS! ,[object Object],[object Object]

Comets and Asteroids ,[object Object],[object Object]

2029 Close Approach ,[object Object],[object Object],[object Object],[object Object],[object Object]

Other Random Events… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solar Flares ,[object Object],[object Object],[object Object],[object Object]

Supernovae ,[object Object],[object Object],[object Object]

Gamma-Ray Bursts ,[object Object],[object Object],[object Object]

What happens on Earth? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Global View Relative DNA damage over about 2 years after a GRB

A GRB may have helped start the Late Ordovician Mass Extinction ~ 440 million years ago 2nd largest mass extinction known Primarily shallow-sea life at this time. No known land life.

Guaranteed Bad Days ,[object Object],[object Object],[object Object],[object Object],[object Object]

The Long Run ,[object Object],[object Object],[object Object]

Dangerous universe

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