Remember planets are billions of years old
http://edition.cnn.com/2015/08/28/tech/mars-photos-alien-life/index.html
Levitating rock on Mars
Don't overestimate humans or human knowledge gained so far.
There are so many things we do not know
Start testing human beings about their knowledge of Dark Energy and Dark Matter
Here is a man how knows and explains current limitations of human knowledge
http://edition.cnn.com/2015/08/28/tech/mars-photos-alien-life/index.html
Levitating rock on Mars
Don't overestimate humans or human knowledge gained so far.
There are so many things we do not know
Start testing human beings about their knowledge of Dark Energy and Dark Matter
Here is a man how knows and explains current limitations of human knowledge