Now, the work-energy principle says that in order to change the energy of a system, you need to add energy to (or remove ...

Trump has given soldiers the authority to detain migrants for domestic criminal violations. In person, it’s overwhelming.

President Trump said at a rally in Pennsylvania on Friday that he is going to double tariffs on steel imports from 25% to 50% ...

Beneath the cherry blossoms of Hiroshima, memories of devastation linger — but so does hope. This exclusive extract from Six Minutes to Winter, Mark Lynas’s urgent new book on the threat of nuclear ...