Recent content by MarkmBha

  1. MarkmBha

    How big can 'ultramassive' black holes get? Scientists may have the answer

    Phoenix A may not be just the most massive black hole we have ever detected — it might also be the largest black hole we will ever detect, as it sits right on this limit.
  2. MarkmBha

    What is the big rip, and can we stop it?

    Can humans on planet Earth stop the universe from destroying itself? Are you serious?