Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
Astronomers have discovered two new satellite galaxies of the Milky Way, and these findings could help us better understand dark matter — the mysterious stuff that accounts for around 85% of the matter in the universe yet remains effectively invisible to us.
However, dark matter indeed interacts with gravity, which can influence the motion and dynamics of light and everyday matter. This has allowed scientists to infer the presence of dark matter, and eventually determine that large galaxies are surrounded byCDM predicts that these dark matter halos have played a significant role in the evolution of galaxies. In the early universe, they formed gravitational wells into which the gas and dust that formed stars within galaxies were drawn.
They combined the distribution of dwarf galaxies Subaru has been able to see with its night-sky"footprint" to calculate an estimate for how many satellitesin reality, surround our galaxy. This led to the calculation that 500 galaxies surround the Milky Way — over double the amount predicted by simulations based on the
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Scientists may finally be close to explaining strange radio signals from beyond the Milky WayRobert Lea is a science journalist in the U.K. who specializes in science, space, physics, astronomy, astrophysics, cosmology, quantum mechanics and technology. Rob's articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space and ZME Science.
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