>> If at all they did land, then why didnt even made an attemot to try it second time......!!!!!
Such stupidity!! Do you know ANYTHING about the appolo missions at all? They landed on the moon SIX times, dear friend - not even including the 3 missions where they only went to the moon orbit and did not land.
And about the failed shuttle missions, they have flown a total of 117 missions in their 5 space shuttles - with ONLY 2 failures(Challenger and Columbia). Considering the complexity of these missions, their success rate is nothing short of spectacular. For your information, flying a shuttle to space and bringing it back safely is not like driving an auto-rickshaw on the streets.
Cannot believe I wasted 5 minutes of my life talking to idiots like you(IQ