ScienceTomorrow Today - The Science MagazineTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience09/02/2019September 2, 2019This week we reveal the secret behind a charismatic voice, go on the hunt for meteorites and continue our series retracing Alexander von Humboldt's journey to the Americas. It's worth tuning in!https://p.dw.com/p/3OkbwAdvertisement