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How not to catch a sunbeam
Has the precious cargo of the crashed Genesis mission survived to tell us about the origins of our solar system?
Playing with numbers
Here's a game: pick a positive natural number and if yours is the smallest number no one else has picked, you...
What is a black hole – physically?
Small, dark, and very hard to see. This and far more indepth answers to every question you ever wanted to...
Information about information
What is information and how does it shape our reality?
What is a black hole – mathematically?
Pau Figueras explains how Einstein's theories predicted the existence of black holes, and how to describe...
Physics in a minute: What's the problem with quantum gravity?
At the heart of modern physics lurks a terrible puzzle: the two main theories that describe the world we...
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