Astronaut Health Problems

US Secretary of State John Kerry is in Moscow for talks to try to bridge gaps with Russia over the political process to end Syria's civil war.

China tries to scare off the BBC's Rupert WIngfield Hayes from flying over the new islands China is building on international waters in the South China Sea.

Travelling in space has many odd effects on the human body - one of the strangest has to do with vision. We hear from a former astronaut.