Watch Nendo's Tokyo 2020 cauldron open to reveal Olympic flame

This video shows the Tokyo 2020 Olympic cauldron designed by Japanese studio Nendo opening up to reveal the hydrogen-powered Olympic flame.

Designed by Nendo founder Oki Sato to evoke a sun, the spherical cauldron was the centrepiece of the games' opening ceremony, which took place last Friday in the Kengo Kuma-designed Tokyo National Stadium.

The video shows the aluminium segments of the spherical cauldron unfurling before the Olympic flame is lit.

The flame is powered by hydrogen, which burns without producing greenhouse gas emissions. This is the first time that this fuel was used for the Olympic flame instead of propane.

Read more about the 2020 Olympic cauldron ›