31.   On the crucial question of human rights, the two leaders might as well have been on different planets, for all the meeting of minds they achieved.

32.   San Antonio and Houston might as well be on different planets.

33.   So divergent are the courses the two sides take to get from here to there, it often seems as if they are traversing two different planets.

34.   The candidates are so different they might be from different planets.

35.   The IPN plans call for an extension to the domain naming system to cover different planets and solar systems.

36.   The two men, in fact, seem to come from different planets when discoursing on Mother Earth.

37.   The two Koreas, bitter enemies since they fought in the Korean War, are now virtually as isolated from each other as if they were on different planets.

38.   The two movies might as well have been made on different planets.

39.   They appeared to be from different planets.

40.   These two cities, Oakland and San Francisco, separated only by a bay, might as well be from different planets.