First, celebrate the 150th birthday of the Periodic Table with us. Then hear about the likelihood that earth could be hit by an asteroid in the future (and what can we do about it). Learn about giant termite-mounds in Brazil, and a new disease attacking Beech trees in Ohio. The show finishes with Dr. Leslie Moise reading her new poem about this special tree. The poem was especially written for this show!

Music by Dee Yan Kee (Cosmopolitan- Margarita-Bellini) from freemusicarchive.org.