NASA covering up, aliens are real.

Aliens are real and NASA is covering up its existence, says one of the nasa's astronaut who was the crew member of Apollo mission. Mitchell says that "aliens resemble little people who look strange to us" and says they visited the earth.
Mitchell says alien technology is far more advanced than what humans have achieved, and if the alien intent were hostile, "we would be gone by now". He added "we are not alone and i am assured by that".
However NASA's spokespersons said "NASA does not track UFOs. NASA is not involved in any sort of cover up about alien life on this planet or anywhere in the universe".