Chinese researchers have pushed the frontiers of quantum encryption, demonstrating a powerful new way to send secure information over more than 100km (62 miles) of optical fibre – without having to ...

The Trump administration had for months increased pressure on the Maduro government. In January, U.S. forces captured the Venezuelan president. By Isabela Espadas Barros Leal and Genevieve Glatsky ...

A year ago, the leaders of the House Armed Services Committee put the Space Force on notice. The service, they said, was putting too much focus on its operators and not enough on its acquisitions ...

A calm patch of seawater looks simple from above. Chemically, however, it’s anything but simple. Right where air meets liquid, water molecules and dissolved ions arrange themselves in ways that ...

Researchers from the Department of Molecular Physics at the Fritz Haber Institute have demonstrated the first magneto-optical trap of a stable "closed-shell" molecule: aluminum monofluoride (AlF).

A long-awaited cease-fire between Israel and Hamas went into effect on Friday – as the Jewish state released the list of 250 Palestinian prisoners serving life sentences who will be freed, including ...

A cautious calm spread Tuesday in neighborhoods of Aleppo in northern Syria after overnight clashes between Syrian security forces and Kurdish fighters. The violence came as tensions grow between the ...

Tensions have been building over government attempts to bring the Kurdish-led region in northeastern Syria under its authority. Kurdish leaders have so far resisted. By Carlotta Gall Reporting from ...

When humanity first started studying motion, circles posed a peculiar puzzle. Why do planets sweep endlessly around the Sun without flying off into the void of space? Why does a stone swung on a ...

Add Yahoo as a preferred source to see more of our stories on Google. Elon Musk's companies have received billion of dollars in defense contracts. (MANDEL NGAN/AFP—Getty Images) The U.S. Air Force is ...

The Air Force is denying early retirement to all transgender service members with between 15 and 18 years of military service, opting instead to force them out with no retirement benefits, according ...