Back to the Future

Why is it easy to break an egg, but impossible to un-break it? More generally, why is the past so different from the future? We can’t travel into the past, but we’re inexorably carried into the future. We can remember the past, but we can’t reliably predict the future. But strangely, the fundamental laws of physics work just as well backwards as forwards – so why do we perceive an arrow of time? That’s the subject of my new feature article for BBC Earth….

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How Many Earths?

Ever wondered how many stars in the night sky had planets like Earth going around them? That’s what this interactive feature for New Scientist is about. I built it with my colleagues Peter Aldhous and MacGregor Campbell, using data from the Kepler space telescope. Rather than taking up more space here, I’ll let the feature speak for itself; I hope you enjoy it as much as I do.

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