Well, to the best of my understanding, both are an issue with current colliders. I've not read any of the papers around the idea of observing collisions caused

Well, to the best of my understanding, both are an issue with current colliders. I've not read any of the papers around the idea of observing collisions caused by high energy events elsewhere in the galaxy/universe, but the articles I read made it sound like this would solve a portion of the problem that we otherwise might not be able to without a solar system sized collider. They didn't make it sound like this would be anything we could do anytime soon, however. But potentially sooner than we'd be able to generate the energy needed to cause collisions at those energy levels. I'm having trouble finding the articles I've read on the subject - I'll follow back up if I do manage to find 'em.