Signs of Flowing Water on Mars 1 2 3 4 5 6 7 8 9 10 Second New Deposit Before-and-after views of a second site where a gully flowed. On the left, the site as it appeared in 2001. On the right, the same site in 2005. The gully is located in a crater in Terra Sirenum. + Full image and caption     Jet Propulsion Laboratory    California Institute of Technology