Architecture master Oscar Niemeyer defined 20th-century architecture and is synonymous with Brazilian modernism; our ultimate ...

President Donald Trump's top negotiator working on Russia's war in Ukraine predicted Trump would have a "successful" phone call with President Vladimir Putin on Monday, saying he believed the ...

Meet 33 innovative leaders who are using their voices and talents to tackle the planet’s most pressing issues. For decades, the Congo Basin was largely invisible to climate science. Now, a new ...