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.’s Open University. Follow him on Twitter @sciencef1rst.
"That then leads to the next question of, well, what was actually consumed?" he said."Because it doesn't look like it was just one thing; it looks like it's been a collection of things that are all being slowly torn apart."
As the 13.8 billion-year-old galaxy has aged, it has expanded, meaning that during these mealtimes, matter in the universe would have been more densely concentrated than it is today. Since then, galaxies like Andromeda have formed and grown, turning the universe from a homogeneous desert of matter to the feature-filled cosmos we see today — although how precisely that played out remains unclear., and today it's full of galaxies," Lewis said.
An illustration of the Dulais Structure, a dark stream of stars in Andromeda left over from a feeding event.While there is some evidence that our galaxy has been merging with and even swallowing other galaxies, it isn't yet settled ourgalaxy, which is similar in size and shape to Andromeda, has also engaged in bouts of galactic cannibalism to facilitate its own growth.
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COVID-19 pandemic widened the gender gap in astronomy publishingRobert 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.’s Open University. Follow him on Twitter sciencef1rst.
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Magnetic Milky Way filaments dwarfed by mysterious structures in distant galaxy clusterRobert 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.’s Open University. Follow him on Twitter sciencef1rst.
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