Albert Einstein Einstein did not return to Germany. He settled in the United States and became an American citizen in 1940. On the eve of World War II, he endorsed a letter to President Franklin D. Roosevelt alerting him to the potential development of "extremely powerful bombs of a new type" and recommending that the US begin similar research. This eventually led to the Manhattan Project. Einstein supported the Allies, but he generally denounced the idea of using nuclear fission as a weapon. He signed the Russell–Einstein Manifesto with British philosopher Bertrand Russell, which highlighted the danger of nuclear weapons. He was
Albert Einstein ATV was opened on 18 June. The hatch opening was delayed by a day due to concerns raised by Roscosmos that the cargo had not been disinfected satisfactorily. On 19 June 2013, "Albert Einstein" conducted its first reboost of the ISS, performing a 407-second burn which provided a delta-v change of 1.0 m/s to the station. A further reboost was undertaken on 10 July 2013, where a burn of just less than 10 minutes provided a delta-v change of 1.45 m/s; this operation consumed of propellant. By 12 July 2013, all the dry cargo had been unloaded from "Albert Einstein", allowing