In 2009, Mexican-American engineer José Hernández fulfilled a lifelong dream: to travel to space as a NASA astronaut. Getting there was harder than for most. Born into a family of migrant farmworkers, José lived his childhood on what he calls the ‘California circuit’. He’d spend the winter holidays with his family in Mexico’s south, then follow the seasonal harvest across the US state, changing schools every few months. His ambition saw him become the first