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How many supernova explode every year?

badastronomy.beehiiv.com

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Re: How many supernova explode every year?

#51

Post by delusional »

RicoElectrico wrote: post #41
tialaramex wrote: post #9

That's one of my favourite hints in Outer Wilds. You will see a Supernova. Not with a fancy telescope, it's visible to the naked eye, and if you watch the sky you'll see another soon enough. You can see this right at the start, and unlike the random direction of the probe launch you don't need any game lore to, if you're smart enough, put two and two together.

[flagged]

HUGE SPOILER ALERT. SERIOUSLY, PLAY OUTER WILDS.

It's a little more than just " the sun will also go supernova". The core conceit of the games story is that you're living in the final moments of dying universe.

Re: How many supernova explode every year?

#52

Post by dostick »

herendin2 wrote: post #18

If I got the math right, then about 1 in every 32,000 stars in the universe goes supernova each year. That's scary. But I think I'm getting the math very wrong. edit: I guess my error might be related to confusing a probability factor with the number of incidents in a period. edit: The right answer is probably up to 1 in every 10bn stars go supernovae in the universe each year (or 1 in 10bn die and a fraction are sup…

Isn’t the answer infinity? We don’t know what’s beyond observed part of universe, and there’s infinity number of universes. If our emerged then there’s others.

Re: How many supernova explode every year?

#53

Post by ninkendo »

lifeisstillgood wrote: post #48

No wonder the Millennium Falcon takes so longer to calculate its jump to hyperspace. Tens of thousands a year is one an hour! There are so many supernovae you really could bounce too close to one and that would end your trip real quick

Star Wars takes place entirely within one galaxy, and the number of supernova per galaxy is something like 1 per century, so, nah, Han was just bullshitting to stall for time while his busted-ass computer cobbled together numbers.

Re: How many supernova explode every year?

#55

Post by tialaramex »

RicoElectrico wrote: post #41
tialaramex wrote: post #9

That's one of my favourite hints in Outer Wilds. You will see a Supernova. Not with a fancy telescope, it's visible to the naked eye, and if you watch the sky you'll see another soon enough. You can see this right at the start, and unlike the random direction of the probe launch you don't need any game lore to, if you're smart enough, put two and two together.

[flagged]

I mean, yes it will, but mostly no that's not what the hint is about. Play the game.

Re: How many supernova explode every year?

#56

Post by tialaramex »

dostick wrote: post #52
herendin2 wrote: post #18

If I got the math right, then about 1 in every 32,000 stars in the universe goes supernova each year. That's scary. But I think I'm getting the math very wrong. edit: I guess my error might be related to confusing a probability factor with the number of incidents in a period. edit: The right answer is probably up to 1 in every 10bn stars go supernovae in the universe each year (or 1 in 10bn die and a fraction are sup…

Isn’t the answer infinity? We don’t know what’s beyond observed part of universe, and there’s infinity number of universes. If our emerged then there’s others.

There is no reason to expect any particular number of universes. We've observed exactly one, this one, which had to exist or else we wouldn't be here to observe that it existed.

Our universe is finite, so although it is unbounded (lacks edges) there aren't an infinite number of anything in it, galaxies, stars, M&Ms, grains of sand, atoms of hydrogen all finite.

Re: How many supernova explode every year?

#58

Post by whoisthemachine »

thih9 wrote: post #33

> [Supernova discovery statistics for 2021] says there were 21,081 supernovae seen in 2021 > When the Vera Rubin survey telescope goes online, it’s expected to see hundreds of thousands of supernovae per year by itself.

Maybe they will have to transition from Base 26 counting to Base 64!

Re: How many supernova explode every year?

#59

Post by mietek »

db48x wrote: post #50
rbanffy wrote: post #42

Earlier quoted context omitted.

Since I'd like to live forever, then yes.

What you really want to do is put out the stars sooner then, and feed all the hydrogen into the supermassive black hole at the center of the galaxy. Dump in all the mass in the galaxy and all of its satellites and everything from Andromeda and its satellites too and it will grow. Nudge Andromeda’s central black hole into orbit around ours so that they merge, etc, etc. Grow it big enough and and you can build a Birch…

I would like to hear what you have to say about forever.

Re: How many supernova explode every year?

#60

Post by bonoboTP »

fooker wrote: post #17
deadbabe wrote: post #16

Can the thread title be rewritten to be less obnoxious? “How many supernova explode every year?” is fine. This isn’t Reddit. Thread titles should not imply some kind of personality or use cliche meme speak. The all caps is definitely an abomination.

Please read the article along with bikeshedding titles. It's a good one.

The article itself is also written in that kind of quirky meme personality tone. I guess some find it relatable and humorous. Others (like me) find it obnoxious. Matter of taste or perhaps of age bracket. This is the text version of "Youtube voice", which is also evidently successful but not all like it.
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