Science

Research, discovery and the natural world — from the cosmos to the cell.

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Science 5 min read

What Are Stem Cells?

Stem cells are the body's master cells, able to renew themselves and turn into specialised cell types. Here is what the main types are, how…

Dr. Nadia Okoro
Science 5 min read

How Do Planes Fly?

A plane flies by balancing four forces: lift pushes it up, weight pulls it down, thrust drives it forward and drag holds it back. Here is…

Dr. Nadia Okoro
Science 5 min read

How the Immune System Works

The immune system is the body's layered defence against germs, combining fast general responses with a slower, highly targeted one that…

Dr. Nadia Okoro
Science 5 min read

What Is Gravity?

Gravity is the attraction between anything that has mass, from an apple to a galaxy. Here is how Newton and Einstein each explained it, why…

Dr. Nadia Okoro
Science 6 min read

How Do Telescopes Work?

Telescopes work by gathering and focusing light to make distant, faint objects appear brighter and bigger. This guide explains refractors…

Dr. Nadia Okoro

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