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White House press secretary Karoline Leavitt will leave her role at the end of the month, US President Donald Trump said on Wednesday, ending the tenure of one of his most prominent and trusted advisers as the administration heads towards November's midterm elections.

Researchers at the USC Viterbi School of Engineering and Keck School of Medicine of USC have engineered a genetic tool that addresses one of the most persistent obstacles in cancer immunotherapy: the physical softness of tumors.

Two of the nation's most powerful health officials predict artificial intelligence will play a key role in solving rural America's health challenges.

Desenhos que nunca foram divulgados.

In some Sun Belt areas, nearly 1 in 5 sellers is asking for less than what they paid.

Pictures from sporting events as the most significant solar eclipse since 1999 is visible across the UK and Europe on Wednesday.

Great Britain's Matthew Hudson-Smith makes history as the joint-most decorated man of all-time at European Championships by claiming 400m gold in Birmingham.

Former world No 4 reflects on emotional reaction in Canada and rebuilding after the most difficult period of his careerThose painful images have relentlessly spread to all corners of the internet.

As Lionel Messi considers his footballing future following the death of his father, BBC Sport looks back at some of his most iconic moments.

How bad timing, a studio in financial turmoil, and a movie that looked nothing like the cartoon conspired to defeat the most powerful man in the universe. Destaque: $50,000, $17.3, 17.3 mi.

Many people think of negotiation as something reserved for salary talks, car purchases, or business deals: infrequent, high-stake encounters most people would rather avoid.

Most antibiotics used clinically are based on natural compounds produced by bacteria and other microorganisms.