I disagree. When one is only concernde about the order of magnitude, it should be given as 1*10^2 mya or as 0.1 bya. What the OP said is analogous to saying that one's grandfather died at the age of 100, when in reality he only lived to be 66.
Not all of those explode eventually, rather it's a small amount. Only the most massive stars explode into a supernova. The majority of stars are smaller, and will have different lifetimes. For example, the sun, an unusually bright star (brighter than about 95% of stars) will eventually turn into a red giant, slough off material then collapse to a white dwarf. It's estimated that the majority of stars are brown dwarf (very small, some not too-too much larger than Jupiter), and less than 1% of stars are massive enough to go supernova. The problem is that only the big stars go super nova, and the big stars also have the short lifetimes because they're burning fuel so quickly.
White dwarfs can also explode, if they are in a binary system. It's a different kind of explosion (more akin to a thermonuclear bomb) but it also produces iron.
They did? I need only step into my back yard to see birds and lizards.
> remarkably common event
Probably not normally distributed but depends on the age of a given galaxy. But indeed, it does look like they are not super uncommon in our neighborhood.
The correct term is "non-avian dinosaur" for the ones that died en masse, but making that point in the first place is already pretty pedantic, doing it with snark is just being annoying for the sake of being annoying.
We're far off the topic of the thread which is iron-60 supernova paleoarchaeology but I can't help myself from pulling things even further off-course. Did you know there were flying dinosaurs in the medieval era that hunted humans from the skies?
- "'[Haast's] eagle had the possibility to hunt people,' Joanne says. 'It's hard to imagine a bird in that role but if it could successfully hunt a 250kg moa, then 80kg humans were possibly on the menu. There is oral tradition which suggests it was the case.'"
As the article notes, this sounds like it is a remarkably common event. Dinosaurs only died out around 100 mya.