Copernicus transformed our understanding of the solar system and is best known for his theory that the sun and not the Earth is at the centre of the universe.

Pena Nieto has promised to push through a series of economic reforms, including tax legislation and an overhaul of the state-run energy sector.

More than 80 Iberia flights were canceled as workers at the carrier began a series of five-day walkouts.

Jordan first announced plans to build its own nuclear capacity and exploit the country’s uranium resources in 2008.

Medvedev will hold talks with Brazilian President Dilma Rousseff and co-chair with Vice-President Michel Temer.

N. Korea says its nuclear program is a response to what it called a U.S. threat and has warned of further, unspecified measures of "greater intensity."

The resignation of Bassam Zarka is the latest sign of tension between President Mohammed Morsi's Muslim Brotherhood and its Islamist ally.

The report accused both sides of using child soldiers, citing the presence of fighters younger than 18 on the govt. side and under 15 among the rebels.

The letters from Mark David Chapman to Stephen Spiro are for sale starting at a fixed price of 75,000 dollars.

The 58-year-old flew back from Havana before dawn and was taken to a military hospital; no new details were given on his health.