Q&A: Black Holes
If a black hole could 'eat' so many stars but still conserve
their energy, how is it that the material the black hole is made from
could withstand such an enormous energy?
When someone says that a black hole conserves energy they just
mean that the amount of energy (or matter) that falls into a black hole
is the same amount that the black hole grows. So if a 1 pound shoe
falls into a black hole, the black hole gets 1 pound more massive.
We don't know what happens to matter once it falls into a black hole,
but we do know that its energy is still there and is not lost. For a
description of how black holes form and grow, see our field guide on black holes: