Something falls from Apollo 17 LEM when leaving the moon

An interesting finding on the NASA video , showing the departure from Apollo 17 from the moon.

I cannot identify what is the piece falling on the video, i would like to have your comments

S.Sousa

NASA Hubble Finds New Neptune Moon

This composite Hubble Space Telescope picture shows the location of a newly discovered moon, designated S/2004 N 1, orbiting Neptune. The black and white image was taken in 2009 with Hubble’s Wide Field Camera 3 in visible light. Hubble took the color inset of Neptune on August 2009.

Image Credit: 

NASA, ESA, M. Showalter/SETI Institute

NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet.
The moon, designated S/2004 N 1, is estimated to be no more than 12 miles across, making it the smallest known moon in the Neptunian system. It is so small and dim that it is roughly 100 million times fainter than the faintest star that can be seen with the naked eye.

Anniversary of the Mars Pathfinder Landing

Mars Pathfinder was launched on Dec. 4, 1996 at 1:58:07 am EST on a Delta II rocket. After an uneventful journey, the spacecraft safely landed on the surface of Mars on July 4, 1997. The first set of data was received shortly after 5:00 p.m. followed by the release of images at 9:30 p.m.

The Sojourner rover, with three Lewis components, then began its Martian trek and returned images and other data over the course of three months.