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Matthew Francis

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    An Arguably Unreal Particle Powers All of Your Electronics

    A microscopic image of a metamaterial used to test relativity in a lab.Lawrence Berkeley National Laboratory Like happy families, every free electron is alike: They all have the same mass, the same electric charge, and the same spin. But inside a solid, various interactions can make electrons behave like entirely different particles. They may act […]

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    Supernovas & Other Big Bangs: Where Your Body Comes From

    “Some part of our being knows this is where we came from. We long to return. And we can. Because the cosmos is also within us. We’re made of star stuff. We are a way for the cosmos to know itself.” —Carl Sagan, Cosmos That Carl Sagan quote is among one of his most famous sayings, […]

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    Universal Remoteness: What the Multiverse Means About Us

    Our Universe is vast and mostly empty. Even if many of the billions of planets we suspect are out there have life, most of the cosmos is uninhabitable, and those worlds are unreachable by any means we know. That’s just within our galaxy, which is one of about 100 billion in the part of the […]