Such as our aliens real, our UFOs cutting edge technology from Earth or perhaps from another planet.
Are we truly alone here on Earth or do we have visitors from other galaxies walking among us?
They were to hide super secret craft of non-human origin anywhere on earth.
Is it fair to say this is one of the most top secret places on earth?
This is the most top secret place on earth, yes.
This was the first object identified as coming close to Earth from outside the solar system.