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  • Study: Direction in Which Galaxies Spin Depends on Their Mass

Cosmic filaments are massive thread-like formations, comprising huge amounts of matter, including galaxies, gas and dark matter.

They can be 500 million light-years long but just 20 million light-years wide.

At their largest scale, they divide the Universe into a vast gravitationally linked lattice interspersed with enormous dark matter voids.

β€œThe spine of cosmic filaments is pretty much the highway of galactic migration, with many galaxies encountering and merging along the way,” said Dr. Charlotte Welker, a researcher at McMaster University, the ARC Centre of Excellence for Astrophysics in 3 Dimensions (ASTRO 3D) and ICRAR.

Using data gathered by the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) at the Anglo-Australian Telescope, Dr. Welker and colleagues studied each of the target galaxies and measured its spin in relation to its nearest filament.

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