The value of stocks on the Athens Stock Exchange dropped sharply Monday after the exchange opened for the first time in five weeks.
U.S. Secretary of State John Kerry is hearing concerns about the agreement reached with Iran last month to limit its nuclear activities.
Scientists who study the sun watch for sunspots — violent storms that can affect communications, navigation systems and even electric power stations on Earth.
Five years ago, work crews successfully stopped a major oil spill in the Gulf of Mexico.
The United States has promised not to give up its fight against human trafficking.
Fifty years ago, the well-loved musician Bob Dylan played at the Newport Folk Festival and was widely booed.
The Taliban officially confirmed Thursday that its founder and leader, Mullah Omar, is dead.
The Nigerian army said Thursday it rescued 59 women, children, and older men who had been captured by Islamic militants.
The latest voter study shows American businessman Donald Trump with a big lead in the Republican Party presidential race.
The United States government said Thursday it would investigate the killing in Zimbabwe of a protected lion.