The dense star cluster called R136 is located within the Tarantula Nebula (also known as 30 Doradus), a giant star-forming region in a nearby dwarf galaxy. This computer simulation shows the gravitational interaction of two young star clusters that are believed to have merged to form R136. 3.5 million years of the encounter have been compressed into 27 seconds. After the first interaction, the pair of star clusters become gravitationally entwined and eventually merge together.
Video Credit: STScI