- cross-posted to:
- science
- cross-posted to:
- science
The excellent PBS Spacetime - a physics and cosmology education channel - has released a new video detailing the effects and likelihood of supernovae in our stellar neighborhood.
- wintrparkgrl ( @wintrparkgrl@beehaw.org ) English3•1 year ago
been watching spacetime since the original host, amazing channel
- sarsaparilyptus ( @sarsaparilyptus@beehaw.org ) English3•1 year ago
I can answer that: the Sun going supernova would most likely trigger a mass-extinction event on Earth. Time to start writing grant letters
- EthicalAI ( @EthicalAI@beehaw.org ) English1•1 year ago
What supernova distance
- OmnipotentEntity ( @OmnipotentEntity@beehaw.org ) English2•1 year ago
We have a lower bound of 1 AU then!
It is estimated that a Type II supernova closer than eight parsecs (26 light-years) would destroy more than half of the Earth’s ozone layer. -Wikipedia
So we probably wouldn’t want that to happen either, but I don’t know if that would cause specifically an extinction event.
Also the star most likely to cause a near-earth event is IK Pegasi which is about 150 light years away.