Comets have fascinated, even terrified us for thousands of years. This year, a particularly massive chunk of ice and rock is hurtling our way, an object that will fascinate billions and should create the space show of the century.
Comets have fascinated, even terrified us for thousands of years. This year, a particularly massive chunk of ice and rock is hurtling our way, an object that will fascinate billions and should create the space show of the century.