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  2. Dark energy - Wikipedia

    en.wikipedia.org/wiki/Dark_energy

    The nature of dark energy is more hypothetical than that of dark matter, and many things about it remain in the realm of speculation. [22] Dark energy is thought to be very homogeneous and not dense, and is not known to interact through any of the fundamental forces other than gravity.

  3. Findings by dark energy researchers back Einstein's ... - AOL

    www.aol.com/news/findings-dark-energy...

    The physical nature of dark energy is at present unknown," Huterer said. The new findings appear to corroborate the current standard model of cosmology that includes the theory of general relativity.

  4. This new cosmological map shines some light on dark energy

    www.aol.com/cosmological-map-shines-light-dark...

    Dark energy is one of the greatest mysteries in science today. One of the simplest explanations is that it is a “cosmological constant” – a result of the energy of empty space itself – an ...

  5. Lambda-CDM model - Wikipedia

    en.wikipedia.org/wiki/Lambda-CDM_model

    The fraction of the total energy density of our (flat or almost flat) universe that is dark energy, , is estimated to be 0.669 ± 0.038 based on the 2018 Dark Energy Survey results using Type Ia supernovae [8] or 0.6847 ± 0.0073 based on the 2018 release of Planck satellite data, or more than 68.3 % (2018 estimate) of the mass–energy density ...

  6. Cosmological constant - Wikipedia

    en.wikipedia.org/wiki/Cosmological_constant

    Since the 1990s, studies have shown that, assuming the cosmological principle, around 68% of the mass–energy density of the universe can be attributed to dark energy. [6] [7] [8] The cosmological constant Λ is the simplest possible explanation for dark energy, and is used in the standard model of cosmology known as the ΛCDM model.

  7. Zero-point energy - Wikipedia

    en.wikipedia.org/wiki/Zero-point_energy

    By seeing how dark energy influences their arrangement and shape, the mission will allow scientists to see if the strength of dark energy has changed. If dark energy is found to vary throughout time it would indicate it is due to quintessence, where observed acceleration is due to the energy of a scalar field, rather than the cosmological ...

  8. Cosmic microwave background - Wikipedia

    en.wikipedia.org/wiki/Cosmic_microwave_background

    Based on the 2013 data, the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. On 5 February 2015, new data was released by the Planck mission, according to which the age of the universe is 13.799 ± 0.021 billion years old and the Hubble constant was measured to be 67.74 ± 0.46 (km/s)/Mpc .

  9. The sun may be prone to 'rare but extreme' events that could ...

    www.aol.com/superflares-could-more-common...

    Solar flares are intense, localized bursts of electromagnetic radiation from the sun, releasing immense energy over short periods. These events impact Earth's upper atmosphere and can occasionally ...