Astronomers have discovered a ‘treasure trove’ of rare dwarf satellite galaxies orbiting our own Milky Way. The discoveries could hold the key to understanding dark matter, the mysterious substance which holds our galaxy together.
This week, work begins on the next phase of development for the Square Kilometre Array radio telescope, with the University of Cambridge leading major ‘work packages’.
If a galaxy is seen as a peach, the standard cosmological model portrays dark matter as the ‘pit at its centre’. Now a study of two dwarf galaxies by astrophysicists at the Institute of Astronomy suggests that dark matter is evenly distributed to make a ‘pitless peach’.