Comment on Scientists find first observational evidence linking black holes to dark energyparentComments−Sharlin3yEnergy is mass, mass is energy. E=mc^2, remember?Mass is not in general conserved. Every second every main-sequence star in the universe converts untold millions of tons of mass to energy.But in general relativity even energy is not conserved because the universe is expanding.
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Energy is mass, mass is energy. E=mc^2, remember?
Mass is not in general conserved. Every second every main-sequence star in the universe converts untold millions of tons of mass to energy.
But in general relativity even energy is not conserved because the universe is expanding.