Elon Musk announced Thursday he had released all of the electric carmaker Tesla's patents, as part of an effort to fight climate change.

The United States will suspend compliance with the Intermediate-range Nuclear Forces Treaty with Russia today and formally withdraw in six months if Moscow does not end its alleged violation of the pact, Secretary of State Mike Pompeo said yesterday.

The polar vortex that locked the US Midwest in sub-zero weather and led to the deaths of at least 21 people will give way to milder, snow-melting temperatures this weekend.

A US negotiator called Thursday on North Korea to provide a detailed account of its weapons to seal a peace deal, saying President Donald Trump was ready to offer a future that includes diplomatic relations and economic aid.

The United States and China said their trade war negotiations resulted in major progress as the clock ticks on a March deadline to avert a massive escalation of tariffs that could bruise the global economy.

The United States will suspend compliance with the Intermediate-range Nuclear Forces Treaty with Russia on Saturday and formally withdraw in six months if Moscow does not end its alleged violation of the pact, Secretary of State Mike Pompeo says.

A blast of icy polar air brought dangerously low temperatures to the US Midwest on Wednesday, causing at least three more deaths while halting mail delivery and forcing residents who pride themselves on their winter hardiness to huddle indoors.

Urban areas are expected to grow by 80 percent by the end of the next decade, and unless they grow up rather than out, they could be in trouble, according to a new report from the World Resources Institute and Yale University.

A blast of icy polar air brings dangerously low temperatures to the US Midwest, causing at least three more deaths while halting mail delivery and forcing residents who pride themselves on their winter hardiness to huddle indoors.

Tens of millions of people in the United States are bracing for a potentially life-threatening deep arctic chill forecast to hit swaths of the country.

Facebook paid users, including teens, to track their smartphone activity as part of an effort to glean more data that could help the social network's competition efforts, according to a new report that may raise fresh privacy concerns.

The death toll from the collapse of a Brazilian dam rose to 84 yesterday as mining giant Vale announced that moves to dismantle similar structures would hit production.

US intelligence chiefs contradicted some of President Donald Trump's most fundamental foreign policy claims Tuesday, underscoring a persistent division in his view of the world and theirs.

US President Donald Trump attacks the US intelligence services as "naive" and "wrong" on the threat he says is posed by Iran.

US intelligence chiefs contradict some of President Donald Trump's most fundamental foreign policy claims, underscoring a persistent division in his view of the world and theirs.

The United States last year slid down the rankings of a global corruption index as America's system of checks and balances faced growing threats on Donald Trump's watch, Transparency International said yesterday.

The Trump administration on Monday imposed sweeping sanctions on Venezuelan state-owned oil firm PDVSA, aimed at severely curbing the OPEC member's crude exports to the United States and at pressuring socialist President Nicolas Maduro to step down.

A newly discovered FaceTime bug lets people hear and even see those they are reaching out to on iPhones even if the other person hasn't answered their phone.

Grief over the hundreds of Brazilians feared killed in a mining disaster has quickly hardened into anger as victims' families and politicians say iron ore miner Vale SA and regulators have learned nothing from the recent past.

Lamenting that the American Dream and its democracy are under attack in Donald Trump's United States, California Senator Kamala Harris formally declared Sunday her candidacy to become the country's first black female president in 2020.