This capsule, it is hoped, will contain material from Itokawa, a half-kilometre-long asteroid whose orbit crosses the Earth's.
⇑ Translate the sentence above by Google ⇑
Related: kilometre
Prev: We should have turned left five kilometres back.
Next: Every cubic kilometre of the ring contains around 20 tiny particles of dust, making it so tenuous, it would be invisible from the inside.