Space stations: our future among the stars

Once the International Space Station is decommissioned in 2028, what will the next generation of orbital bases look like?

The Collection of Peggy and David Rockefeller review – yours for half a billion

Christie’s, King Street, London
Picasso’s bolshy flower girl is just one of the rare gems to be glimpsed in London before this vast private collection goes under the hammer

Erdem Moralıoğlu: ‘Backstage, eight minutes can feel like hours’

Erdem Moralioglu Backstage, eight minutes can feel like hours
Erdem Moralıoğlu: ‘Backstage, eight minutes can feel like hours’

 


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Why wood is back at the top of the tree for architects

Strong, clean and versatile, engineered timber is the ‘new concrete’. With wooden skyscrapers in the offing, could it be the answer to the global housing crisis?

Rowan Moore’s best architecture of 2017

Postmodernism returned in style, Liverpool’s Welsh Streets were saved, but Grenfell Tower defined the year

• Observer critics’ reviews of the year in full

Laura Cumming’s best art of 2017

There was revolutionary fervour from Russia, dazzling critiques of the American dream, and unforgettable faces…

• Observer critics’ reviews of the year in full