In the multiverse, pocket universes could be born with clashing directions of time – the evolving future of one could happen in the rewinding past of another
With a decision imminent on permitting UK gene-editing research using human embryos, New Scientist explains the potential pay-off and limitations of the work
Two surprising new findings are overturning everything we knew about parthenogenesis, suggesting virgin births could be far more common than we thought
The biggest known leak of a greenhouse gas has shut schools, led to evacuations and caused the state to propose new legislation to make gas wells safer