What Chemicals were Stored in China Blast Warehouse?

After Thursday's explosion at a warehouse storing toxic chemicals, we ask what those chemicals were and what impact they will have on the environment.

'Diplomacy through skateboarding' - one of the more unusual ways the US is developing links with Cuba.

A new planet has been discovered and named 'young Jupiter' due to its similarities with the original gassy planet.

(Photo: A paramilitary policeman wears a mask as he blocks the road leading to the explosion site in Tianjin. Credit: Reuters/Damir Sagolj)