JM Coetzee and psychotherapist Arabella Kurtz talk about truth, fiction and the stories we tell ourselves.

Sand is rarer than you might think, in fact it is getting scarce.

The mystery of how rocks move across Death Valley lake bed has finally been solved.

The Last Saturday. A new graphic novella by Chris Ware published in weekly instalments in The Guardian.

The lethal lure of Mont Blanc.

Excellent account of the 2009 crash of Air France Flight 447.

An appreciation of Taiwanese director Hou Hsiao-hsien. Three Times is one of my favourite movies.

A Q&A with Karl Ove Knausgaard.

Why walking helps us think.

The most detailed map yet of our place in the universe.

Dreadnoughtus: a new dinosaur discovery.

Good primer on high frequency trading by Donald MacKenzie.

Sea levels are rising, gnawing at America's shores. Don't say it isn't true. And check again 10 or 20 years from now.