Scientists Studying Nearby Supernovas Explain That Previous Mass-Extinction Events On Earth Were Caused By Exploding Stars

There’s no chance of a supernova-triggered mass-extinction event in our near future.
I guess we are all very well traveled.
The colliding of galaxies sounds terrifying.
Imagine if this leads to finding life outside our solar system.
We are alive. We are intelligent. We must know.
Magnetic fields that stretch over thousands of light-years have been difficult to map.
Visualizing the imperceptible with a cosmic timelapse
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