This artist’s concept illustrates the two types of spiral galaxies that populate our universe: those with plump middles, or central bulges (upper left), and those lacking the bulge (foreground). Credit: NASA
A large proportion of galaxies have undergone a major ‘metamorphosis’ since they were initially formed after the Big Bang. By providing the first direct evidence of the extent of this transformation, the team hope to shed light on the processes that caused these dramatic changes. They observed around 10,000 galaxies using a survey of the sky created by the Herschel ATLAS and GAMA projects.
The researchers then classified the galaxies into the 2 main types: flat, rotating, disc-shaped galaxies (much like our own galaxy, the Milky Way); and large, oval-shaped galaxies with a swarm of dis...
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