Science

What the air is made of, how the atmosphere drives weather and climate, and how air quality affects your body.

How evolution and genes work, why sex evolved, how cooperation emerged, and the major transitions in the history of life.

The leading theories for how life began, including the hydrothermal vent theory, and what we know about LUCA, the last universal common ancestor.

How mitochondria began as separate organisms, why they made complex life possible, and how they produce the energy your cells run on.

The harder questions about the origin of life: how to define life, where viruses fit, and newer ideas such as the free energy principle.

Plain-language definitions of the key terms in the origin of life, cells, genetics and evolution.

How simple rules produce complex systems, from cells to societies, and the difference between weak and strong emergence.

What entropy is, why the second law of thermodynamics gives time a direction, and how living things use energy to stay organised.

The four fundamental forces of physics explained without the maths, and how they show up in your own body.

What the Big Bang actually means, what happened in the first moments of the universe, and how the first stars and galaxies formed.