Dark energy. The current estimates for the distribution of mass/energy in the Universe are approximately:

68% dark energy

27% dark matter

5% baryonic (i.e. "normal") matter

Dark Energy Digital was created in 1998.

Dark matter and dark energy have NOT been detected yet, so any ideas about detecting dark energy and dark matter, whether it be directly or indirectly, is speculation for now.

Dark energy is the force that is driving the expansion of the universe

Solar energy can be USED in the dark, but cannot be collected .