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What are quantum computers, what will they be able to do, and when can we expect to have fully functional ones?

How the maths that is used to predict earthquakes can help fight gang crime. (Image: Todd Shaffer.)

Read about the rocky road to one of Einstein's greatest achievements: the general theory of relativity, which celebrates its centenary this year.

El Niño is a climate event without equal, causing droughts, floods, hurricanes and typhoons around the globe. How can we understand and predict it?

How do you describe the curvature of space?

To celebrate the centenary of the general theory of relativity we asked physicist David Tong to explain the theory and the equation that expresses it. Watch the video or read the article!

Image: Robert Hurt, NASA/JPL-Caltech.

Global coordinates, how to work out your latitude by the stars, and the problem with longitude.