00:01
So let's talk about stars for a minute.
00:03
There are several types of stars.
00:06
I'm not going to go into all the stars, but we'll talk about a couple, maybe a few types.
00:17
So we can have several types of stars.
00:19
We have blue giants, we can have red dwarfs, or a blue dwarf star.
00:24
So we have dwarfs, we can have giants, and then we can have the one in between.
00:35
The one that's in between, which is basically ours, our type.
00:42
I'll call them orange stars for now.
00:47
And orange stars are pretty much the ones that have the median long lifespan.
00:54
So we got orange, maybe red dwarfs, maybe stars, and then giants.
01:06
Yeah, let's call red dwarfs.
01:09
Now what tells you how long a star will last? and why don't they live forever? well, stars don't live forever because a star gets a certain amount of mass.
01:32
And through the mass, the main source of fuel is fusion.
01:39
The problem with fusion is that as you fuse into heavier elements, so we'll go from hydrogen to helium in a star, to lithium to beryllium, or on and so on.
01:53
It'll go through all the entire sequence of the periodic table, making every single element closely.
02:01
But once it does that, once it uses all of its hydrogen fuel to turn it into other elements, then it's done.
02:11
The star is done.
02:11
Now a lot of things could happen.
02:14
Basically, it could just blow up like a balloon and just become voluminous.
02:18
It could remove its melaninous and just become a dwarf.
02:22
There's a lot of things that can happen, but we don't really know actually everything that can happen in this instance...