Explorers discover new worlds and perspectives that change humanity forever.Leland Melvin has spent his life exploring.  He’s been a rocket scientist, an astronaut, and an NFL player.Now, he’s an educator who uses the dramatic ups-and-downs of his own life to inspire the next generation of explorers.  This is… A Bit of Optimism.For more on Leland and his work, check out: lelandmelvin.com