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A black hole swallowing a star

Space

Reality guide: Six problems physics can't explain

From the dark energy ripping the cosmos apart to the part consciousness plays in creating reality, quantum physics and cosmology retain many mysteries

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Ripples

Space

Reality guide: The essential laws of quantum physics

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Space

Reality guide: Six radical ideas to change physics

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Physics

Quantum teleportation over 7 kilometres of cables smashes record

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Physics

Five particles that don't exist – yet could change our world

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Physics

Lessons in reality from particles that don't exist

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Qubit

Technology

Revealed: Google's plan for quantum computer supremacy

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Metaphysics 6

Humans

Metaphysics special: Do we have free will?

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Metaphysics 3

Physics

Metaphysics special: Why is there something rather than nothing?

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Humans

Metaphysics special: Is time an illusion?

We are born, time passes and we die. So time must exist, right? The trouble is, it's tricky to pin down what time actually is

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Humans

Metaphysics special: What is reality made of?

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Humans

Metaphysics special: What is the meaning of life?

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Space

Why quantum satellites will make it harder for states to snoop

Insight

Physics

Quantum trick sees two things happen before and after each other

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