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galaxy evolution

number of breaks: 2

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The stars that time forgot remember the youth of our Milky Way

How did galaxies, like our own Milky Way, arise from the featureless universe after the Big Bang? Through a lot of astronomical detective work, we now know that galaxies expand through consuming smaller systems, tearing them apart through their gravitational forces and assimilating their stars.... click to read more

  • Geraint F. Lewis | Professor at Sydney Institute for Astronomy, School of Physics, The University of Sydney, Sydney, Australia
Views 715
Reading time 4 min
published on Mar 12, 2021
A natural close-up of a pierced galaxy 18 billion light-years away

Einstein's general theory of relativity predicted that gravity not only acts between two masses but also affects light which has no mass. We cannot see this effect in everyday life, but when light travels over vast intergalactic distances and is affected by the incredibly large... click to read more

  • T. Emil Rivera-Thorsen | Postdoctoral Research Fellow at Department of Astronomy, Oskar Klein Center, Stockholm University, Stockolm, Sweden
Views 1873
Reading time 3.5 min
published on Oct 1, 2020