It's my opinion that NASA is a political branch of the government in propaganda, speaking out to the world on how great American capability is, smoke and mirrors, in moving the chess pieces on the board of world powers.
NASA states they sent a mechanical space craft, millions of miles away over several years to Mars, and that they landed this craft, took soil and atmosphere samples, and transmitted this info back to earth?
Humans can't keep a cell phone working consistently, and many believe the claims above, real big smiles!