This video depicts NASA's Curiosity rover observing Mars' two moons, then shows one moon passing in front of the other.
(mov) (12.42 MB)
(mov) (4.76 MB)
(mov) (3.08 MB)
(mov) (1.24 MB)
(mp4) (8.13 MB)
(mp4) (5.15 MB)
(m4v) (6.95 MB)