'This type of "energy", a main constituent of the universe, is understood even less than this type of "matter"'
dark
UNIVERSE: This type of energy, a main constituent of the universe, is understood even less than this type of matter
This type of "energy", a main constituent of the universe, is understood even less than this type of "matter"
This type of "energy", a main constituent of the universe, is understood even less than this type of "matter"
UNIVERSE
dark
UNIVERSE