Should we look for aliens? Should we edit the natural world? Why does all life need water? Are my cells younger than me?
Do the dead outnumber the living? Can we ‘freeze out’ death? Are we thinking about death wrong in the West?
How much money do you need to be happy? Why does schadenfreude exist? Does altruism really make you happy? Will we work in the future?
How much of psychology can we trust? Does the brain eat itself? How many senses do we have?
Where did all the antimatter go? How many pieces of space junk are orbiting Earth? Could we build an elevator to the Moon? What’s inside the fifth dimension?
- Olympics Q&A special
- Why doctors think you should try cold-water swimming