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Just to be safe from a major supernova, t'would be best to spread into at least one neighboring galaxy.

*** True. I try not to think about super novas. There is enough to worry about as it is. ***

Hi, and 'scuse me for butting in)

That's one problem with Cosmology (and watching the Science channel 24/7). You find out all the ways the Universe it out to kill us. A regular 'ole Super Nova is just one of the ways we could all get wiped out faster than... Barry can give a proper salute to our troops.

But that we don't have to worry about that, our Sun is too small to go Super Nova, not enough mass. Sol will become a White Dwarf when it dies, no Black Hole for us. But there's all the other neat stuff.

A Killer Asteroid that's probably already out there with our name on it.
A Comet that we won't find until it's too late but couldn't do anything about anyway.
One of the millions of Black Holes that are freely roaming around 'out there' and could swallow us up tomorrow if we got in its way.
Still being around when our Sun starts to burn out and goes into its Red Giant phase and swallows earth (but we'd be burned alive long before that - yippee)
Or still being around when the Andromeda Galaxy collides with our Milkyway Galaxy and both Galaxies merge in a Death Dance. And we won't win the dance, Andromeda is larger, and even in the best scenario Earth is Doomed anyway).
But the worst IMHO is a Super Gamma Ray Burst (SGRB). And those happen quite regularly.

It's those that keep me up at night thinking, I'm 'series'. If a massive star (sol x 10³⁰) goes super nova and it produces a Super Gamma Ray Burst and its pole is aimed at Earth, we're Toast. Literally. I don't know why but dieing from Gamma Rays is like 2nd on my list of 'ways I DON'T want to go' (being in a Foxhole with a Lib or a Frenchman is #1).

And the nasty (scary) part is that somewhere out there a 'SGRB' may have already happened thousands of years ago and its merrily traveling its way toward us at Light-speed.

That's all, just adding my 2¢.
Continue on guys.

A “super Carrington” event would also wipe out civilization — although not in one fell swoop, because it might take a month or two for our food stockpiles to be exhausted.

At any rate, after those excruciating months of mass starvation, the only surviving humans would probably be a few isolated, wild tribes in the New Guinea mountains and in the jungles of the Congo and Amazon basins.

These primitive folks might repopulate Mother Earth in another 30,000 or so years. Just imagine their amazement when they eventually stumble upon some old DVD’s of Madonna and Lady Gaga!