Are there radioactive planets in this universe?
I am referring to those made completely out of radioactive elements
The universe is about 27billion light years wide filled with galaxies around 30000 light years wide there might be a few or millions but not around this solar system
Probably, they've been finding all kinds of planets out there, even one made completely out of diamonds. If there is one, it has not been discovered yet.
All planets contain radioactive material but there are none that are completely radioactive.