What if “life in prison” could mean 100 or 200 or 400 years? Does that change the way that sentences are dolled out? What happens when a person gets out of prison?

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If the Earth, somehow, stopped rotating around the sun, it would have exactly 64 1/2 days before it crashed into the fireball at the center of our solar system. Here's what would happen during those last 64 1/2 days.

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Your face is one of your most valuable possessions. But what happens when facial recognition is so good that any company can grab an image of your face while you’re walking down the street, and link it to everything from your social media profiles, to your credit score, to your workplace?

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What would happen if a company put up so many wind turbines that they actually changed the climate on Earth? I know this sounds totally crazy, but I swear to you this is something that scientists have actually looked into. So naturally, I talked to one of those scientists.

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Need to get from New York to Paris? Or San Diego? Chances are you’re not taking a car or a bus or a boat to go there. Instead, you’d hop on a plane. But aside from hurting your wallet, commercial flights also hurt the planet, contributing to the continuous input of carbon dioxide into the atmosphere that is in turn contributing to climate change. So what if we stopped flights? What would happen?

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We all want to be our best selves. But what if you could add almost anything to your body and mind? A camera here, an exoskeleton there. This is the world that some biohackers imagine—one in which humans can extend their abilities beyond the limits biology has set for us. But what does that world look like?

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We often think of stars as twinkling, harmless little points of light that fill our night sky with majesty. But stars can be dangerous too. When they come to the end of their lifespan, some stars explode fantastically as supernovae. So what would happen if one of those giant explosions happened nearby?

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If you’re reading this, you have access to the Internet. But what would happen if the Internet suddenly went away? And what would it take to make that happen?

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If there was a drug that meant you never had to sleep again, would you take it? Would those who didn’t need to sleep have special advantages over those who did? All that and a side of zombies, in this week’s episode.

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Over the past 85 years, antibiotics have been miracle drugs. They’ve kept infections at bay and opened up a world of medical possibilities: organ transplants, heart surgery, chemotherapy. But they’re not going to work forever. The age antibiotic resistance is coming. So what does a world without these drugs look like?

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