Does the Gillespie Lake rock outrop point to past life on Mars?
Updated on 3/16/2016.
This article points to an article that discusses claims by Nora Noffke, a geobiologist who is not a member of the Curiosity team. She said the Gillespie Lake features could be consistent with a biological origin, but stressed repeatedly that this was just a hypothesis, and that she didn't regard the structures as proof of past Mars life. The article is found here, and it is based on what is seen on Figures 1 and 2 below. See Figure 4 for possible life seen by Viking 1 and MSL.
Figure 4 - Possible life seen by Viking 1 and MSL.