text: In conclusion using technology is not a good use to read student in a classroom. There no reason because there are people when can detect other people's expressions. Students also using their own resouces/knowledge. In the passage it states that, "moving your facial mucles not only express emotions, but also may help produce them." No need technology to tell a person that. On May 24, 2001, a NASA Viking 1 spacecraft had saw a landform on Mars that had happened to look like a human face. The spacecraft had taken pictures of this landform and show the world a few days later in order to attract people to Mars. Some people, like conspiracy theorists, say that it's evidence of alien life that NASA has hidden from the public, but if this had been something NASA was hiding, they wouldn't have show that photo at all to the public. Scientists and astronaunts have denied this by adding titles that suggest otherwise on there photos, showing the photo in the first place, and going back up to space to take more pictures.