With the release of ‘Everything, Everywhere All at Once’, a kung-fu film set across many universes, Dennis Overbye looks at why the multiverse is such an enduring sci-fi trope
As more countries legalise cannabis use, it’s more crucial than ever that we explore the long-term effects the drug can have on our minds, writes Barbara Jacquelyn Sahakian
From the Great Stink to being declared biologically dead, the Thames has always been polluted. So why is it considered one of the cleanest rivers, asks Veronica Edmonds-Brown
