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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 .
For example, in regions of high dark matter density (e.g., the centre of the Milky Way) two dark matter particles could annihilate to produce gamma rays or Standard Model particle–antiparticle pairs. [152] Alternatively, if a dark matter particle is unstable, it could decay into Standard Model (or other) particles.
Dark matter is called ‘dark’ because it’s invisible to us and does not measurably interact with anything other than gravity. It could be interspersed between the atoms that make up the Earth ...
Dark energy could in principle interact not only with the rest of the dark sector, but also with ordinary matter. However, cosmology alone is not sufficient to effectively constrain the strength of the coupling between dark energy and baryons, so that other indirect techniques or laboratory searches have to be adopted. [ 58 ]
Scientists have made many guesses for what dark matter could be, ranging from unknown particles to extra dimensions. But Hawking’s black holes theory has only lately come into play.
The treatise purports to quote Paracelsus on the point that "[t]he light of the soul, by the will of the Triune God, made all earthly things appear from the primal Chaos". [49] Martin Ruland the Younger, in his 1612 Lexicon Alchemiae, states, "A crude mixture of matter or another name for Materia Prima is Chaos, as it is in the Beginning."
Dark matter may not give off any light or radiation, but we might be able to watch it smash into atoms here on Earth. Dark matter makes up 85% of all matter in the Universe, but astronomers have ...
At the turn of the 14th century, medieval Christian theologian Duns Scotus (1265/66–1308) formulated a metaphysical argument for the existence of God inspired by Aquinas's argument of the unmoved mover. [37] Like other philosophers and theologians, Scotus believed that his statement for God's existence could be considered distinct to that of ...