On January 12, the International Space Station crew unloaded the recently-arrived Antares rocket, which contained precious cargo like food, spare parts and tiny satellites. Along for the ride was a colony of ants with a very unique purpose: to demonstrate how the ever-efficient insects adapt to life in microgravity.

If you’ve ever had an ant invasion in your home, you know this pattern: A single ant finds a source of nourishment and then turns into a milling mass of ants ferrying food back to the colony. Meanwhile, individual ants fan out to investigate the rest of the room.

These behaviors do not come from the queen or some other central force. Instead, they are built on innate algorithms that ants developed over millions of years, according to Stanford University. Ants have poor vision, so they rely on smell and touch for guidance while exploring. When the number of…