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Satellite galaxies not randomly arranged

2 February 2018 Astronomy Now

New observations indicate dwarf galaxies may not orbit their parent galaxies in random alignments as predicted by dark matter computer models. Instead, satellite galaxies orbiting in more ordered planes may be the rule, not the exception.

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Station-bound instrument to open new chapter in the story of cosmic rays

9 August 2017 Stephen Clark

Physicists are gearing up to send a re-engineered science instrument originally designed for lofty balloon flights high in Earth’s atmosphere to the International Space Station next week to broaden their knowledge of cosmic rays, subatomic particles traveling on intergalactic routes that could hold the key to unlocking mysteries about supernovas, black holes, pulsars and dark matter.

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Is dark matter “fuzzy”?

2 May 2017 Astronomy Now

Astronomers have used data from NASA’s Chandra X-ray Observatory to study the properties of dark matter, the mysterious, invisible substance that makes up a majority of matter in the universe. The study, which involves 13 galaxy clusters, explores the possibility that dark matter may be more “fuzzy” than “cold,” perhaps even adding to the complexity surrounding this cosmic conundrum.

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Mystery of ultra-diffuse faint galaxies solved

29 November 2016 Astronomy Now

Over the last year, researchers have observed some very faint, diffuse galaxies. These so-called ultra-diffuse galaxies (UDGs) are as faint as dwarf galaxies but are distributed over an area just as large as the Milky Way. Now, a solution to the mystery of how such galaxies form has been found.

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Grid computing to tackle the mystery of the dark universe

26 November 2016 Astronomy Now

Scientists from the University of Manchester working on the revolutionary Large Synoptic Survey Telescope project have harnessed the power of distributed computing from the UK’s GridPP collaboration to tackle one of the universe’s biggest mysteries — the nature of dark matter and dark energy.