Reported by the Daily Mail, NASA is currently investigating a strange mark on the South Polar layered deposits of the Mars; Red Planet and, while it's currently believed to be an impact crater, the icy surface can make accurate assessments of the terrain difficult.
An image from the Mars exploration Orbiter's HiRISE depicts the large crater surrounded by smaller pocs, and showcases the bizarre texture that has scientists talking. Images such as these can be used to help map the age of the topography by their size and frequency, however, changes over time make this process increasingly difficult.
With more funding recently allocated to sending humans to Mars, gathering information and hi-res images of the planet are an important element in the ongoing mission. Hopefully, we can even keep our astronauts sane for the journey while we're at it.