In this week's issue: Quantum theory finally makes sense... but only if we poke holes in the fabric of reality.
Grab a copy in shops now or download our app for digital editions. newscientist.com/issue/3610/
Peter Heller's post-apocalyptic novel The Dog Stars was the New Scientist Book Club's read for August. Alison Flood rounds up how members felt about this novel, which is soon to be released as a film from Ridley Scott
From China Miéville to Brandon Sanderson via a tribute to Ursula K. Le Guin, there are some really huge names with new sci-fi novels out this month - as well as a new Doctor Who tale, says Alison Flood
Water is essential for good brain function, with a handful of convincing studies suggesting that dehydration could be slowing you down, cognitively speaking. Columnist Helen Thomson explores how much water we should be drinking to stay sharp