What looks like a still of an exploding firework is actually taken from an ESA simulation of humankind’s expansion across the stars, produced for an international competition. Each dot is a habitable star system, with the colored stripes representing interstellar expeditions between them.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/modellinggal.jpg)
Source:
https://phys.org/news/2019-06-galactic-settlement.html