Definition of dark energy in English:

dark energy


  • A theoretical repulsive force that counteracts gravity and causes the universe to expand at an accelerating rate.

    ‘Einstein's theories allow for the possible existence of dark energy’
    • ‘Whatever dark energy turns out to be, we already know how to measure it and how to calculate its effects on the cosmos.’
    • ‘The evidence for gravitationally repulsive dark energy is strong, but there are gaps in our knowledge.’
    • ‘The energy density of dark energy, which depends on w, affects the expansion rate.’
    • ‘The chief sign of the existence of dark energy is that the universe's expansion is accelerating.’
    • ‘Because dark energy can turn gravity into a repulsive force, it could account for this acceleration.’
    • ‘The ever-growing amount of dark energy progressively accelerates the universal expansion.’
    • ‘The equation-of-state parameter governs the rate at which the dark energy density evolves.’
    • ‘An issue that arose during the discussion was whether dark energy worked against gravity.’
    • ‘Astronomers do believe that some kind of dark energy is slowly speeding up the Universe's expansion.’
    • ‘Steve Petranek and I talked about dark matter, dark energy and gravity.’
    • ‘It is too soon yet to know whether the existence of dark energy will be confirmed with future experiments.’
    • ‘Nobody knows how to calculate dark energy which is causing the Universe to accelerate.’
    • ‘Researchers ascribe this strange state of affairs to dark energy, an entity that's the flip side of gravity.’
    • ‘Dark energy is a form of energy that does not dilute as the universe expands.’
    • ‘The need for the dark energy has been invoked by a need to explain the acceleration of distant galaxies.’
    • ‘Well, what you can see are the gravitational effects, both of dark matter and of the dark energy.’
    • ‘According to the model, the Big Bang is followed by a period of slow expansion and gradual accumulation of dark energy.’
    • ‘Today scientists are developing multiple strategies for measuring dark energy in new and different ways.’
    • ‘Yet dark energy is a nebulous concept, one that has thus far flummoxed some of the smartest researchers on the planet.’
    • ‘It is also possible to modify GR directly in four dimensions to help do away with the need for dark energy.’