Limericks

My physicist father once said
" uranium decays down to lead "
but that " the gleam in his eye
decayed down to..."   I?
I think Pa's Ma and Pa weren't wed.

Now, let us be abundantly clear
about black-holes, we must not go near,
they'd suck us right in
smear us very, very, thin
then spew us out of their rears...                      

There was a black hole out far
who swallowed a neighbouring star,
" hmmm, tasty" it quipped
and licking its lips,
rolled off to the nearest bar.


and, after watching the beginning of The Simpson's
tree house of horror VXI...

But this black hole will be the worse
and O, how we will curse and curse,
as it gobbles stars faster and faster
gets faster and vaster
till, it swallows our universe...