Mark Kelly says he thinks first person to walk on Mars is alive today

“It might be some kid in high school. It could be even somebody older than that. We don’t know. It’s a challenging proposition to send people to Mars and then safely get them back,” Kelly said. “I think it’s something we should be doing as a country. I think when we do these very aspirational things that are very difficult with people, we get tremendous amounts back as a country.”