Science, Maths & Technology
Clavius - a lunar mystery
...source of selenological samples, as many of the moon rocks returned to Earth by Apollo 11 were ejecta from the crater. To honour their achievement three small craters just to the north of the Apollo 11 landing site were named Armstrong, Aldrin and Collins. With the supply of large craters having long since been used up these craters are no more than 5 km across....