Aaron Rodgers Details UFO Sighting On 'Hard Knocks'

Aaron Rodgers has been seeing things before he ever dabbled in psychedelics -- the New York Jets quarterback went in depth about the time he believes he saw a UFO on "Hard Knocks" this week ... saying he felt like he was in a movie!!

The four-time MVP opened up on the 2005 experience on the season finale of the Max series Tuesday night ... when he was staying with his old college teammate, Steve Levy, in New Jersey prior to the NFL Draft and heard an alarm going off outside.

Naturally, the guys left the house to investigate ... and Rodgers couldn't believe his eyes.

"Up in the clouds, we heard this sound and we saw this tremendously large object moving through the sky," Rodgers said. "And it…