How wonderful would it be if the growth of scientific and technological innovation would come along with more equality and social inclusion. How wonderful would it be, while we discover faraway planets, to rediscover the needs of the brothers and sisters orbiting around us. How wonderful would it be if solidarity, this beautiful and, at times, inconvenient word, were not simply reduced to social work, and became, instead, the default attitude in political, economic and scientific choices, as well as in the relationships among individuals, peoples and countries.