24 May 2016
Astronomers find ultra diffuse galaxy heavy in dark matter
...1287 contains 3 tonnes of dark matter. Ultra diffuse galaxies (UDGs) have the sizes of giant galaxies but the luminosities of... and it is these properties that have helped UDGs stay hidden for so long. UDGs were first discovered in the Coma Cluster, a...
28 November 2018
A hidden giant found lurking close to the Milky Way
... had another detrimental effect on Ant 2 – a serious lack of dark matter keeping it all together. The paucity of stars in UDGs has also prompted some researchers – although not everyone agrees with this – to speculate that these type...
25 June 2015
The story behind ultra dark galaxies
... low density. What’s interesting about these galaxies – which have also been dubbed as ultra diffuse galaxies, or UDGs – is that even though they contain very little gas as compared to what we think of as “normal” galaxies, i.e. shiny spirals...
