3 ms·

The universe is believed to be infinite, so: infinity down, infinity to go!

• dylan604 6y ago
  Infinite space/size, not infinite mass though. The space between the mass is expanding, but the mass is staying the same.
  • 867-5309 6y ago
    perhaps, until you factor in dark energy/matter
    • saiya-jin 6y ago
      If mass of universe remains the same, so should any form of energy within it (since they are interchangeable according to my layman's high school knowledge of Einstein's stuff). Or you meant something else?
• Florin_Andrei 6y ago
  Yes, but the part within this event horizon (which is all there will ever be for us) is finite.