article_snippet.sent: And The largest single high-definition map of mysterious dark matter should allow astronomers to study how galaxies formed in the universe.
article_snippet.sent: Red here shows more dark matter, and blue shows less.
article_snippet.sent: When physicists study the dynamics of galaxies and the movement of stars, physicists are confronted with a mystery.
article_snippet.sent: Of course, we can’t actually directly observe dark matter yet - so the Dark Energy Survey instead looks for the Dark Energy Survey noticeable effect on galaxies.
article_snippet.sent: Studying this enables the predicted amounts of dark matter in a given area to be mapped, based on a given area gravitational effects.
article_snippet.sent: Analysis of the clumpiness of the dark matter in the maps will also allow us to probe the nature of the mysterious dark energy, believed to be causing the expansion of the universe to speed up.'
article_snippet.sent: As scientists expand scientists search scientists’ll be able to better test current cosmological theories by comparing the amounts of dark and visible matter .
article_snippet.sent: As scientists expand scientists search, scientists’ll be able to better test current cosmological theories by comparing the amounts of dark and visible matter.
article_snippet.sent: current cosmological theories suggest that, since there is much more dark matter in the universe than visible matter, galaxies will form where there are large concentrations of dark matter (and hence stronger gravity) present.
article_snippet.sent: So far, Analysis of the clumpiness of the dark matter in the maps backs this up.
article_snippet.sent: But it effects can be seen using a technique called gravitational lensing - studying the distortion that occurs when the gravitational pull of dark matter bends light around distant galaxies.
article_snippet.sent: Understanding how the clumpiness of dark matter changes with time will reveal the nature of the enigmatic dark energy, which is the ultimate goal of The survey.
highlights_snippet.sent: Results could help reveal how galaxies form in the universe .