The French surrealist still confounds, artists look at the past, present and future of the planet and Rachel Kneebone’s crazed delights blend into the Wallace Collection – all in your weekly dispatch
This Is Still Not a Pipe: The Afterlife of Magritte
The confounding, mind-boggling genius of Magritte is explored through remarkable loans of his paintings plus contemporary responses by Sarah Lucas, Matthew Barney and more.
• Gagosian Grosvenor Hill, London, from 24 September until 12 December