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Dancing galaxies may shake up our ideas of galaxy formation

We thought satellite galaxies were usually in random orbits around larger ones, but a handful in coordinated orbits may force us to rethink galaxy formation
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Interactive dark matter could explain Milky Way's missing satellite galaxies

Academics / General Science : Science Codex

Scientists believe they have found a way to explain why there are not as many galaxies orbiting the Milky Way as expected. Computer simulations of the formation of our galaxy suggest that there should be many more, smaller galaxies ...

"Gigantic Ring of Dwarf Galaxies Orbit Andromeda Galaxy in an Immense Disk" (Today's Most Popular)

Academics / Astronomy : The Daily Galaxy

A gigantic ring dwarf galaxies were found dancing in a ring around the much larger Andromeda Galaxy in early 2013. The finding presents a challenge to our ideas of how all galaxies form and evolve. The surprising research result rev...

Dwarf Galaxies Orbiting Andromeda Baffle Scientists -- "Like some pre-existing structure has been sucked in by Andromeda"

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A surprising discovery about dwarf galaxies orbiting the much larger Andromeda galaxy suggests that conventional ideas regarding the formation of galaxies like our own Milky Way are missing something fundamental. A string of 13 dwar...

Mysterious dance of dwarfs may force a cosmic rethink

Academics / General Science : ScienceDaily: Science Society

The discovery that many small galaxies throughout the universe do not 'swarm' around larger ones like bees do but 'dance' in orderly disc-shaped orbits is a challenge to our understanding of how the universe formed and evolved. The ...

Surprise: Satellite galaxies of Centaurus A are on a coordinated dance

Academics / Astronomy : EurekAlert: Space

(American Association for the Advancement of Science) The satellite dwarf galaxies orbiting around the much larger galaxy Centaurus A are rotating in synchrony around their host, to researchers' surprise.


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