Question Everything....

There's an article in the L.A. Times which you can see here with a long strip of image showing where Curiosity landed on Mars. In the upper parts of it, showing Curiosity and the area above it, if a portion of that is enlarged, 

in the upper portion of the Curiosity frame and the one above that, (shown) there are some marks or lines that almost resemble symbols or writing or something not naturally made. So today's Question Everything would be "What are these?"