Class: problem

http://www.astro.umd.edu/~eshaya/astro-ont/owl/IVOAO.owl#problem

• Thing
  • theoryRelatedConcept
    • problem
      • flatnessProblem
      • heliumProblem
      • horizonProblem
      • magneticMonopoleProblem
      • missingMassProblem
      • paradox +
      3 more...

Superclasses