Olafur Eliasson and the power of the sun

First Olafur Eliasson invented the Little Sun solar-powered lamp for parts of the world without electricity (and Glastonbury). Now the artist has come up with a solar-powered phone charger

Tate Modern’s Frances Morris: ‘If it rained I went to the museum. That had a huge impact’

In her first interview since being appointed director of the world’s most popular contemporary art gallery, Frances Morris talks about its major new expansion, the morality of sponsorship, and her vision for the institution’s future

Marc Jacobs: ‘I have the word Shameless tattooed on my chest’

The distinguished designer’s return to New York has been triumphant. Here he talks about sobriety, social media and how clothes help articulate our feelings

The best food they ate in 2015

Kebabs in Istanbul, sea urchins in County Cork, a sensational lobster pasta in London: top chefs and food writers share their favourite meals this year

The £30m bookshelf: Pierre Bergé and the greatest stories ever sold

With Impressionists on their walls and priceless books on their shelves, Pierre Bergé and his former partner Yves Saint Laurent were the ultimate collectors. But now the art and YSL have gone, Bergé says it’s time ‘to attend the funeral’ of his library

Norman Foster: ‘I have no power as an architect, none whatsoever’

Ahead of a major urban design conference, the architect says we must plan for a more sustainable lifestyle – and discusses his disappointment at the likely rejection of his Thames Hub airport