As British authorities investigate the poisoning of a former Russian spy and his daughter in England, there is much mystery about how exactly the brazen attack was carried out
The United States, France and Germany have joined Britain in condemning Russia for the nerve-agent poisoning of a former spy, calling it an "assault on U.K. sovereignty."
Britain is expelling 23 Russian diplomats and breaking off high-level contacts with the Kremlin over the nerve-agent attack on a former spy
British Prime Minister Theresa May says members of the royal family and politicians will not go to the World Cup to protest against the nerve agent attack on a former Russian spy in England
The head of the Vatican's astronomical observatory has hailed Stephen Hawking as a scientist who gave a "human face" to astronomy
Stephen Hawking, the theoretical physicist whose brilliant mind ranged across time and space though his body was paralyzed by disease, has died at 76
Theresa May: UK cancels all high-level bilateral contacts with Russia over ex-spy poisoning
Theresa May: UK will expel 23 Russian diplomats over spy poisoning, biggest expulsion since Cold War
Russia is dismissing accusations of any involvement in the poisoning of an ex-spy and his daughter as "nonsense"
Nerve agent that UK says was used to poison ex-spy Sergei Skripal and his daughter was developed in Soviet Union near end of Cold War
