But Dr Koechlin does not worry about that, because his Fresnel telescope will be in space.
然而，凯什兰博士并不为此担心，因为他的菲涅尔望远镜将会在太空中。
2
When Dr Koechlin and his team pointed 12 it at Mars they could distinguish that planet's two tiny moons-a task which would require a Newtonian telescope with a mirror at least 30cm across.