If you’re asking whether any supernova have occurred, then yes, they have.

If you’re asking whether humans have seen a supernova, then yes also - the most famous is probably SN 1006, which was the brightest stellar object ever seen by humans, brighter than venus in the sky, and was recorded in the year 1006 by many different societies. There have been several others documented over the last 1000 years.

In addition, which might be more what you’re asking, there have been stars, or at least light sources that look like stars, which have simply appeared and vanished again within a matter of minutes or hours, and their disappearances are often left poorly explained - they could be supernova that for some reason didn’t go nova, or something else entirely. There’s a project called VASCO (Vanishing and Appearing Sources during a Century of Observation):

https://www.iflscience.com/disappearing-stars-in-the-1950s-associated-with-uaps-and-nuclear-weapons-tests-

https://www.smithsonianmag.com/air-space-magazine/stellar-mystery-how-could-100-stars-just-vanish-180973821/

He’s a dementia riddled narcissist, and believes he is infallible. The very concept of the war being a bad decision is incomprehensible to him

The bullet might bounce harmlessly off his bone spurs

That’s what supernova are.

Other stars like our own will eventually, in about 5 billion years, become a red giant and then a white dwarf, but will take hundreds of billions of years to cool to the point where they no longer emit light, so none of them have had enough time for that to happen yet.

Lucky.

Do you live within 50km of an airport ?

Mayday mayday mayday, we need to land immediately, but before we can do that, we need a python script that reverses the order of items in a linked list…

Well that seems like the next logical step if today’s “assassination” doesn’t bring up his polling numbers.

Didn’t she wear a suit covered in mustard ?

If there is any way trump can achieve that, he will.

No, I don’t like her

Do you find the effect of those words affects your mood ?

He’s a bully, so he thinks that the threat of a lawsuit will make the problem go away. He hasn’t thought about what happens if it goes further than that.

*effect

To affect (verb) is to alter something

To effect (verb) is to cause to happen

The effect (noun) is the result

So one can affect the situation by effecting the effect.

Misread the headline and thought it said trump’s spiteful advisor.

Yes

I figured it out. I had the webapp (pwa) version installed from the voyager website, which runs within your browser but otherwise looks identical

I’ve now installed the voyager Android app from the play store and the missing options now show up

Uh… that’s not what I see ? I have two options missing:

Voyager 2.45.1

Sorry I meant voyager, not lemmy in general

Can you tell me where that setting is in voyager, because I’ve just been through the settings and I don’t see it.