Lack of 'dark matter' in early galaxies perplexes astronomers
Most modern spiral galaxies, such as NGC 1300, are thought to have loads of dark matter in their outer regions. NASA, ESA, and The Hubble Heritage Team STScI/AURA)
It may seem like we’ve got the universe pretty much figured out. We have a relatively good idea about how it started and how it is evolving. We’ve sent probes to neighbouring planets, discovered an increasing number of exoplanets and are cataloguing the family tree of galaxies.
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