Troopers never enforce it however. A broken white line on a two lane highway means it's OK to pass slow moving cars on the left if the coast is clear in-front of you. Source(s): Alignment, suspension and brake shop. In Europe, it means you may overtake, but with caution. A soild line means to not cross over.
Best Answer: There have been 6 manned Moon missions, between 1969 and 1972. I'm assuming you mean manned trips to the Moon. All of those were conducted by the US, from 1968 through 1972; 9 missions in all. Apollo 8 was the first time man visited the Moon, in December 1968 right at Christmas time. It was famous for the reading from Genesis on Christmas Day.
On Apollo 10, the Saturn V launched the lunar Lander to the moon. The crew tested the Lander in space but did not land it on the moon. In 1969, Apollo 11 was the first mission to land astronauts on the moon. Saturn V rockets also made it possible for astronauts to land on the moon on Apollo 12, 14, 15, 16 and 17. On Apollo 13, the Saturn V lifted the crew into space, but a problem prevented them from being able to land on the moon.