TRC #601: Essential Oils Safe For Kids? + Colour In Hubble Photos + Can Former Presidents Drive?

Cristina looks into the safety of so-called ‘essential’ oils when it comes to use around children. Friend of the show, Dr. Stuart Robbins, answers a question about why those picturesque astronomy photos of galaxies far, far away are so colourful. Finally, Darren asks if former United States Presidents are actually allowed to drive.