In another couple of billion years, give or take a millennia or two, the Sun will become a Red Giant, incinerating everything within the orbit of Mars.
Earth, Moon, Venus, Mercury and everything else within that circle will be reduced to atomic ash.
Then what?.............................
If a technological civilization can’t engineer a way to migrate to other stars with millions of years of lead time before their sun pukes, then they don’t deserve to continue as a species.
What’s wrong with these sociopathic “scientists”? These arrogant dumba**es. How dare they mess with earth that belongs to all of humanity. If their putzing-around causes problems (after a fair trail and found guilty) will they be hanged in public?
That was on my list of things not to worry about when I was a teen. Same with the impending collision of our Milky Way galaxy with the Andromeda galaxy. I’m sure there are many many other things I’m not even aware of that would be on that list too.