a part of mars. yes, you heard that right. trump's confusing tweet coming one day after "apollo 11" astronaut mocked his knowledge in the cnn podcast. >> do you think president trump is realistic when he talks about his vision for going to mars? >> no, i think his vision is going back to the moon. i don't think he's too much aware of mars. maybe he doesn't understand there is a planet mars. >> i want to read you the president's friday tweet. for all the monday we're spending nasa should not be talking about going to the moon. they should be focused on different things we're doing like going to mars, of which the moon is a part. defense and science. less than three weeks ago he tweeted this. under my administration we're restoring greatness, we're going back to the moon and then mars. confused? let's start by clarifying the moon is not part of mars.