Exactly. In fact, without further data it could be either or neither. That's the problem with those that make wild claims based only on images, without taking into account other data that may corroborate or counter such ideas. What is the temperature? What is the scale? How do these features appear on successive passes? Was the image achieved with visible light, infra red, ultraviolet or radar? Pictures are great to have, since they inspire us to achieve greater things - but they are not the whole story.

__________________
This is not an idea to be tossed aside lightly - it should be thrown with great force