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Astronomers have launched a brand new map of the outermost area of our galaxy.
The galactic halo area lies outdoors the swirling spiral arms that make up the Milky Approach’s recognisable central disk, and is sparsely populated with stars.
The halo is predicted to include an enormous reservoir of darkish matter – an invisible substance thought to make up the majority of all mass within the universe.
The all-star map reveals how a satellite tv for pc galaxy, known as the Massive Magellanic Cloud, has sailed by means of the galactic halo.
Like a ship by means of water, its gravity is making a wake of stars behind it.
Whereas earlier research have hinted on the wake’s existence, the brand new map confirms its presence.
Astronomers consider the disturbance within the halo might provide a brand new check of darkish matter theories.
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