It is the most eagerly followed rescue mission since April 1970, when the astronauts aboard Apollo 13 declared, with famous understatement: "Houston, we've had a problem." However, the world's attention this week is not focused on the skies but towards the depths of the earth, where 33 miners have been stranded nearly half a mile below ground in northern Chile following a disastrous cave-in nearly 70 days ago.
