成人快手

If we begin counting at birth, how high can someone count to in a lifetime? What happens to fish when lightning strikes the sea? And can we create gravity inside a spacecraft?

These are the questions the Naked Scientists Chris Smith and Kat Arney will be answering with help from today's guests: space journalist Richard Hollingham, marine biologist Daniel Green and mathematician Tim Revell. Plus the latest science news and breakthroughs.