Cold gas does not look dramatic at first glance. Neither does dust. Yet those two quiet ingredients sit at the center of a new effort to build a far more realistic picture of how galaxies formed. They ...

There are hundreds of billions of galaxies in the known universe, but scientists still have a lot of questions about how galaxies form, grow and even die. Science Trek is available to stream on ...

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Galaxies don't grow forever. At some point, even the most prolific star-forming galaxies start to slow down, then stall, then settle into a long quiet retirement. Astronomers have known about this ...