SpaceCould a huge lunar telescope be our best chance of spotting aliens? In this latest instalment of Future Chronicles, an imagined history of future inventions, Rowan Hooper explores the advances that meant an optical telescope with an effective mirror size of 3000 km could be built on the moon Comment
PhysicsIs gravity a new type of force that arises from cosmic entropy? Decades ago, a renegade physicist suggested that gravity isn't so much a force as just a byproduct of the universe's tendency to get more disordered. Now this idea might finally be testable Features