TRAPPIST-1 would like to remind you that it was drinkin' beer while you were still rompin' around in your diapers -- or whatever old people say. The ultracool dwarf star system, which first was announced back in February, has garnered a lot of interest because it harbours seven Earth-size planets. At least three of those planets are within the habitable zone that can support liquid water and potentially, life. As we're all clamouring to understand this alien system, a duo of researchers has figured out some pretty salient information about its star's age.