I've been passing a tree on my walk home that's loaded with fruit that both intrigue and frighten me. They resemble cherries, complete with pits, but have a flesh that's far softer and roughly the color of mango. Stranger, the skin is a bit tough and spiky. For lack of identification, I've just been calling them space cherries.
So, what gives? Can any of you identify them, and if so, are they edible?