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.
are seen as they were 2.5 billion years ago, the research could make a valuable contribution to our understanding of cosmic evolution.
The team discovered that intra-group light indicates these stars are younger and less rich in elements heavier than hydrogen and helium — referred to as metals by astronomers — than stars in the galaxies that surround them. Using this information, the team retraced the history of the intra-group stars and how they came to be gathered in a stellar orphanage between galaxies. "We think these individual stars were at some points stripped from their home galaxies and now they float freely, following the gravity of the group," Martínez-Lombilla explained.
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The Large Hadron Collider reveals how far antimatter can travel through the Milky WayRobert 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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