As the war grinds on, sophisticated Russian defenses have pushed Ukraine to develop a frightening new weapon: semiautonomous killing machines. By C.J. Chivers This story was reported over the course ...
SOFIA, Bulgaria (AP) — Dimitar Penev, the Bulgarian coach who guided his country’s team to the semifinals at the 1994 World Cup in the United States, has died. He was 80. The Bulgarian Football Union ...
In August of 1939, Albert Einstein sent a letter to U.S. President Franklin Delano Roosevelt, advising him that the process of nuclear fission could potentially be used to create a powerful atomic ...
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