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  2. Darkness - Wikipedia

    en.wikipedia.org/wiki/Darkness

    The Creation of Light by Gustave Doré. Darkness is the condition resulting from a lack of illumination, or an absence of visible light.. Human vision is unable to distinguish colors in conditions of very low luminance because the hue-sensitive photoreceptor cells on the retina are inactive when light levels are insufficient, in the range of visual perception referred to as scotopic vision.

  3. Dark matter - Wikipedia

    en.wikipedia.org/wiki/Dark_matter

    It is dark matter composed of constituents with an FSL much smaller than a protogalaxy. This is the focus for dark matter research, as hot dark matter does not seem capable of supporting galaxy or galaxy cluster formation, and most particle candidates slowed early. The constituents of cold dark matter are unknown.

  4. Observable universe - Wikipedia

    en.wikipedia.org/wiki/Observable_universe

    This density includes four significant types of energy/mass: ordinary matter (4.8%), neutrinos (0.1%), cold dark matter (26.8%), and dark energy (68.3%). [ 52 ] Although neutrinos are Standard Model particles, they are listed separately because they are ultra-relativistic and hence behave like radiation rather than like matter.

  5. How much does Heisman Trophy weigh? What to know about ... - AOL

    www.aol.com/much-does-heisman-trophy-weigh...

    The Heisman Trophy weighs 45 pounds, is 14 inches long, 13 inches high, and 6 inches wide. The bronze trophy has been given out every year since 1935. How much does Heisman Trophy weigh?

  6. Here's Why American Cheese Can't Legally Be Called Cheese - AOL

    www.aol.com/lifestyle/heres-why-american-cheese...

    All cheese undergoes some degree of processing, but American cheese especially so. Experts explain whether or not American cheese is considered real cheese.

  7. Dark energy - Wikipedia

    en.wikipedia.org/wiki/Dark_energy

    The large difference between these two supports a smooth component of dark energy making up the difference. Much more precise measurements from WMAP in 2003–2010 have continued to support the standard model and give more accurate measurements of the key parameters.

  8. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    A black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy (e.g. light) can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

  9. Not getting enough magnesium could affect cardiovascular risk

    www.aol.com/not-getting-enough-magnesium-could...

    The best sources of magnesium are dark leafy greens like spinach or swiss chard, as well as nuts and seeds. Almonds, cashews, pumpkin seeds or chia seeds are all great options.