Emma loves reading about space. One day, she finds an article that says aliens have already visited Earth. She's super excited and tells her friends. But when someone shows her a science report saying there's no proof, she ignores it. She says, They just don't want us to know the truth! Even though she saw two different sides, Emma only believed the one she already liked. She didn't want to change ... care deeply about something. What's going on in Emma's brain? Why do we sometimes block out facts that don't match what we believe? Take the quiz to find out what's really going on here.