The Hubble telescope detects "smaller" groups of dark matter that contain clusters of galaxies, says NASA – The Media Hq

Posted: January 17, 2020 at 3:46 am

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Astronomers have revealed that dark matter forms much smaller groups than previously known. The study of astronomers was carried out using the NASA Hubble Space Telescope and a new observation technique.

Dark matter, an invisible substance, forms the temporal structure upon which galaxies are built. Basically, it is the gravitational glue that holds galaxy clusters together. Invisible matter is composed of barionic matter, which consists of electrons, protons and neutrons.

The result obtained from the study of dark matter establishes the truthfulness of one of the fundamental predictions of the widely accepted theory of cold dark matter, which says that all galaxies are formed and rooted in clouds of dark matter.

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Astronomers came to the conclusion by measuring how the light of distant quasars, the bright nuclei of very distant galaxies fed by black holes, behaves as it passes through space. The study revealed that light while traveling through space was magnified by the severity of massive foreground galaxies due to the gravitational lens, which led to the detection of groups of dark matter.

Although astronomers cannot see dark matter, they can observe its presence by noticing how its gravity affects galaxies and stars. Before the results of this study came out, the researchers, in the absence of information on small groups, had developed alternative theories, including warm dark matter. Warm dark matter says that invisible matter particles move too fast to merge and form smaller concentrations.

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The Hubble telescope detects "smaller" groups of dark matter that contain clusters of galaxies, says NASA - The Media Hq

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