Big John and Ramblin' Ray 60
Mark Hammergren - Adler Planetarium
A member of one of the smartest guys in the room club, Mark Hammergren was welcomed to the Big John Howell Show this morning. There's an asteroid passing by earth this Christmas.
A member of one of the smartest guys in the room club, Mark Hammergren was welcomed to the Big John Howell Show this morning. There's an asteroid passing by earth this Christmas.