Universe’s Mysterious Dark Matter – First 3-D Map

"Without dark matter, there would have been insufficient mass
in the universe for structures to collapse and galaxies to form. ...Normal matter - including stars, galaxies and gas - is built inside an underlying
scaffolding of dark matter."

- NASA/JPL

First 3-dimensional map of dark matter distribution in this universe moving from the early universe (left) to the more recent universe (right). Image credit NASA, ESA and R. Massey, Cal-Tech.

Age of Universe: 13.7 billion years

Composition:
 .4% glowing matter such as stars.
 3.6% "normal" matter as we know it in planets and stars.
 23.0% cold, invisible "dark" matter detectable only by its gravitational influence on "normal" matter.
 73.0% invisible "dark" energy.

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