Astronomers were looking at the area while searching for runaway stars, which are fast-moving stars that have been kicked out of their stellar nurseries.
“Stars are supposed to form in clusters, but there are many young stars outside 30 Doradus that could not have formed where they are; they may have been ejected at very high velocity from 30 Doradus itself,” lead scientist Elena Sabbi of the Space Telescope Science Institute said.