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Secretary of State Marco Rubio is taking over for Michael Waltz as National Security Adviser, but Rubio is keeping his main job and other roles.

Scientists are using artificial intelligence to make bionic limbs act more like natural ones.

Sensors and artificial intelligence help a prosthetic hand act more like a natural one, new research shows.

NASA's InSight probe landed on Mars in 2018 to help scientists study the planet's interior. But Martian dust has been building up on InSIght's solar arrays, which could end its mission.

NPR's Leila Fadel asks former international and federal prosecutor Alex Whiting what legal arguments can be expected in the prosecution of Nicolas Maduro.

President Trump wants much lower interest rates, and he's going to extraordinary lengths to push the Federal Reserve in that direction. Trump's efforts are now being tested by the Supreme Court.

Politically, President Trump is on his back foot as he prosecutes an unpopular war and seeks to break campaign promises on entitlements.

A new study looks at an unexpected force that played a critical role in shaping the lives of ancient humans.

Angry over the execution of Shiite cleric Sheik Nimr al-Nimr in Saudi Arabia, protesters gathered at the Saudi Embassy in Tehran, reports Iran's semi-official news agency. Some entered the building.

Spain will play Portugal, France will play Peru, and Brazil will play Switzerland — but the draw for the Russian-hosted tournament lacks an obviously imposing group.