Tiny flying robots, rocket engines, and a cameo by Mark Hamill: Inside Jeff Bezos' Mars conference

That is, if you were fortunate enough to get an invite. While last year's invite-only conference, held in southern California's Palm Springs, produced striking images of Bezos strolling with a robotic dog designed by Boston Dynamics, the CEO this time took to the stage with a flying robo-dragonfly. Much of this year's buzz, however, has come straight from the stars; among the attendees is actor Mark Hamill, who portrayed'Star Wars' protagonists'Luke Skywalker' in the films' original trilogy. Bezos demonstrated a robotic dragon fly on stage that circled around his head. As Hamill, who recently revived Skywalker for the latest iteration of the Star Wars franchise, mingled with guests, the conference's other attendees showcased their newest and most exciting revelations in the fields of robotics, artificial intelligence, machine learning, and more.