We are pretty sure it is from Mars based on a long list of chemical and mineral evidence. I think the possibility of life has spurred a lot of scientific activity and thought which is always good. As for having a definite answer as to whether there is life of not will take much more work. Science is slow and methodical. One report or discovery must be tested and backed up before it is believed.
Planets generally form by collecting dust and rocks that float around in the early solar system.
They start small and grow to the size of planets. Some stay smaller and become moons or commets and asteroids. We want to thank you for answering all our questions. We learned a lot. It was exciting to visit with a real scientist.