Computer scientist Abe Davis explains how you can turn a plant or a bag of chips into a microphone, and capturing the hidden sound vibrations on a high-speed camera.
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Ocean explorer Robert Ballard makes the case for exploring the deep oceans, where he is discovering new species, resources and mountain ranges.
Science writer Ed Yong delves into the hidden world of parasites. He describes how parasites, once inside a host's body, become masters in the craft of manipulation.
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Sarah Parcak is a pioneer in space archaeology. After winning the one-million-dollar TED Prize in 2016, she has located thousands of lost ancient sites through a new online crowdsourcing platform called GlobalXPlorer.
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As a boy, Andres Ruzo heard stories of a mythical boiling river. Years later, as a geoscientist, he recounts his journey deep into the Amazon to see if the river actually exists.
