Massive, far distant galaxies contain 100 times more gas than we thought possible.
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Galaxies are supposed to be the place where new stars are formed. So what causes some to stop this stellar production line?
Extragalactic astrophysicists want to know how and why galaxies stop forming stars, change their shape and fade away. With help from citizen scientists, they're figuring it out.
Top contributors
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Michael J. I. Brown is a Friend of The Conversation.Associate professor in astronomy, Monash University
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Senior Lecturer in Physics, University of Hull
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Assistant Professor of Galaxy & Black Hole Astrophysics, Swiss Federal Institute of Technology Zurich
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PhD student in observational astronomy, Monash University
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Senior Lecturer in Astrophysics, Liverpool John Moores University
