Earth Changes and the Human-Cosmic Connection

[axj]

And if that is true, and there was a pause of about 400 years between second and third group, then perhaps the next supernova should also happen about 400 years after the last supernova, which is sometime in the 21st century, and will perhaps also be followed by two more?

There have been a lot of supernovas observed in the 20th and 21st century, though by now almost all are extragalactic.

According to Deepskeep:

• First extragalactic supernova observed was SN1885A in Andromeda Galaxy in 1885.
• Number of observed supernovae since the year 1800:
  • By 1900: ~5 supernovae (mostly galactic).
  • By 1950: ~20 supernovae (most now extragalactic).
  • By 1990: ~1000 supernovae (almost all extragalactic).
  • By 2025: > 60,000 supernovae (overwhelmingly extragalactic).

 

[Persej]

There have been a lot of supernovas observed in the 20th and 21st century, though by now almost all are extragalactic.

Yes, all of them were very far away from us and couldn't be seen by naked eye. The last one that was relatively close to us happened in 1868, but even that one was much further away than the ones in my post, and it was discovered only in 1985. So it probably had no connection with our local galactic plasma filament. And some supernovas might not be caused by surges in galactic current.