Harmonious Universe on Display Again in TRAPPIST-1 System | Video

Similar to the lockstep “dance” between Jupiter and its moons, the “orbital resonance” of the outermost planets of ultra cool dwarf star system can be used to predict orbital periods. [Learn more about it] 

credit : Space.com / footage courtesy: Daniel Fabrycky/University of Chicago/NASA / edited by @SteveSpaleta