BBC Inside Science

Particle physics takes center stage as Tom Whipple and Harry Cliff explore the zeptoverse, a realm a billion trillionth of a metre across where researchers hope to solve major mysteries in physics. The episode also looks at AI’s changing relationship with cherished institutions and rounds up the latest science news.

This episode looks at the global push to protect at least 30% of the world’s land and seas by 2030 as nations assess progress at COP17 on biodiversity. It also revisits an overlooked scientist’s discovery about carbon dioxide and rounds up the week’s science news.