Several dwarf galaxies that `dance` throughout the universe in arranged disc-shaped orbits around larger ones makes it more difficult to understand how the universe was formed and evolved, according to a new study.
Astronomers in the US have discovered seven new dwarf galaxies using a new `homemade` telescope.
Researchers using NASA`s Hubble Space Telescope have claimed that dwarf galaxies are responsible for forming a large proportion of the universe`s stars.
Astrophysicists have revealed that the accepted model of universe is flawed as the dwarf galaxies that orbit the Milky Way and the Andromeda galaxies does not fit in it.
Astronomers believe that they have found the answers to a 20-year debate over how dark matter is distributed in small galaxies.
A modified law of gravity was correctly able to predict, before observations were made, the average speed of stars within a galaxy relative to each other in 10 dwarf satellite galaxies of Andromeda.
Galaxies and matter in the universe clump in an intricate network of filaments and voids, known as the cosmic web.
Nearly 80 percent of the matter in the universe is invisible to telescopes, yet its gravitational influence is manifest in the orbital speeds of stars around galaxies.
The Sagittarius dwarf galaxy used to be one of the brightest of the Milky Way satellites.
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