Very heavy stars that have gone supernova can actually turn into black holes.

Older fatherhood isn't all bad: testosterone rates drop about 1% per year as men age, making them less reactive and more patient, and a professionally established middle-aged man is likely to have more time and money to devote to his kids than a twenty-something who's just getting started.

I came back to work when my children were two months old. At that early age, they seem to have little awareness of anybody but their Raggedy Ann dolls, so it wasn't a matter of them missing me. I was missing them.