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WHY does time only move forward?

Physics

Why does time only move forwards? Possibly just because we’re ignorant

The one-way flow of time is one of the great mysteries of physics. It might be that we see causes and effects just because our information about reality is incomplete

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WHY is there a cosmic speed limit?

Physics

Why is there a cosmic speed limit? It could even be why we're here

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Albert Einstein

Space

Lost in Space-Time newsletter: Will a twisted universe save cosmology?

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The quantum experiment that could prove reality doesn't exist

Physics

The quantum experiment that could prove reality doesn't exist

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MicroBooNE

Physics

Physicists fail to find mysterious 'sterile neutrino' particles

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Stephon Alexander interview: Is the universe a self-learning AI?

Physics

Stephon Alexander interview: Is the universe a self-learning AI?

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Coloured transmission electron micrograph (TEM) of chloroplasts from the yellow portion of a yellow/green variegated Coleus blumei plant. Chloroplasts are the sites of photosynthesis, the process that synthesises carbohydrates from carbon dioxide and water using sunlight. The structure of a variegated chloroplast is slightly different from that of a normal green chloroplast. The granal stacks, formed from parallel thylakoids (membranes, bright lines), that contain the chlorophyll pigments are less ordered in the variegated chloroplast. The pigments themselves are also slightly different. Magnification: x14,300 when printed at 10cm wide.

Physics

From photosynthesis to navigation, life may exploit quantum effects

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Quantum Physics. Atom nuclear model on energetic background, 3D illustration; Shutterstock ID 682727230; purchase_order: PHOTO; job: 25 August online; client: NS; other:

Physics

Beyond quantum physics: The search for a more fundamental theory

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Is quantum theory really as random as it seems?

Physics

Is quantum theory really as random as it seems?

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Why it might be impossible to build a practical quantum computer

Physics

Why it might be impossible to build a practical quantum computer

After “quantum supremacy”, the next step is scaling up and mastering the errors that dog qubits. But some researchers reckon the noise might always to be too high for useful quantum computers

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Physics

What putting big things in quantum states can tell us about reality

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Physics

Can quantum effects in the brain explain consciousness?

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Physics

Why is it so difficult to find a viable quantum theory of gravity?

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Physics

Quantum Darwinism: Can evolutionary theory explain objective reality?

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