EnvironmentThe dream of a greener post-pandemic society seems to be fizzling out As well-vaccinated countries see a path back to normality from the coronavirus, the greener lifestyles we adopted and hoped to make permanent seem to be slipping away, says Graham Lawton Comment
SpaceWhy there are still huge mysteries in supernova physicsThe explosions of supernovae are so powerful they can be seen with the naked eye. The physics behind them is harder to uncover, writes Chanda Prescod-WeinsteinComment