It's been well known that people from other planets have been visiting the earth for thousands of years. The secret government (the ones who pull the strings) have been talking with them, why do you think JFK was killed. He wanted to let the public know, which went against what the secret government wanted.
The space ships look like the millennium falcon and the aliens are a mixture of little grey people with big black eyes, lizard people, and hairy people. They don't like each other.....very racist.
The cern project is a smoke screen. It's actually a teleportation device to the far side of the moon.