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You don’t “find your calling,” you fight for it — and other lessons from people who found their passion (sometimes late in life).

Elizabeth Phillips

How should we tackle the many challenges posed by the Zika virus? MIT’s José Gómez-Márquez and Lee Gehrke share their bright idea.

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This freshly drawn Tree of Life contains a new branch full of microbes — which appear to dominate Earth’s biodiversity. How did we miss that? TED Fellow Hélène Morlon explains.

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Graphic designer Milton Glaser shares why he thinks that not being quite sure is a good way to be.

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The man behind Linux and Git shares his thoughts and philosophy on life, work, management, collaboration and the need for quiet computers.

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Should we be putting humans on Mars? A panel of space experts brings up the big questions we need to ask before we blast off.

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Aliens are not a thing. We know this, right? Well, maybe. Turns out that, almost despite themselves, some of the world’s leading astronomers are taking seriously the question of whether or not we are alone on Earth. Among them, Yale’s Tabetha Boyajian, who has stumbled into what might just be one of the biggest mysteries in the galaxy.