Join us tonight for more from booktv. Our focus, american astronauts and space travel. This weekend on the cspan networks, friday night on cspan, native american history. Former nfl tight end in utah told the Senate Special committee on aging that is absent in his memory. The committee examined the link between sports injuries impacting the brain and whether the lead to aging diseases like alzheimers. Other witnesses included are a logical researchers called for limiting young peoples participation in Contact Sports and telescope and more funding for brain injury research. This hearing is one hour 25 minutes. Good afternoon. Today were going to have to be a little creative because were going to have a series of votes at 2 30. So what ill do is recess the committee, and will go over and vote until the very last vote, and we will cast the vote that the very beginning of the last vote and then race back over here so that we can continue the hearing. Theres also some breaking news just an