APOD 1.6

This is a picture of a rock. However this rock has a lot of mystery behind it.  This rock is located on mars and was discovered on the Surface of mars by the Opportunity rover in 2004. The Opportunity rover gave scientists an opportunity to observe a new mystery on mars. The real reason behind why this rock is perfectly spherical is not quite understood yet. However scientists speculate that this rock could be formed by Ancient Aliens (just kidding) its probably caused by frequent tumbling from water or wind. The rock could also have been formed by sprayed molten lava or by concretion. The black and white image within the picture was taken a few days later. This is another odd rock formation that scientists don't know how it formed. We have barely been able to scratch the surface of Mars, and there will be so much more to discover, however the more we discover, the more we will know about the planets that surround us.