Neutrinos and antineutrinos are elementary particles with small but unknown mass. High-precision atomic mass measurements have revealed that beta decay of the silver-110 isomer has a strong potential ...

White House national security adviser Mike Waltz is set to depart the Trump administration. That’s according to two people ...

The two countries have agreed to a deal to jointly invest in Ukraine's mineral, raw materials and natural resource wealth in ...

The U.S. and Ukraine on Wednesday signed off on a deal that will give Washington access to Ukraine’s vast critical minerals ...

The U.S. and Ukraine have signed an agreement that will give the U.S. access to Ukraine's vast critical mineral resources ...

The United States and Ukraine have signed a deal to establish joint investment in Ukraine’s mineral wealth, oil, gas and other natural resources, officials said Wednesday, in a move that would fulfill ...

Steve Witkoff, who has become Trump’s de facto personal ambassador to Russian President Vladimir Putin in addition to taking ...

A framework agreement had been circulated for at least two months and was thought to be close to finalization Feb. 28. However, on that day, Ukrainian President Volodymyr Zelensky got into an Oval ...

The two sides offered only barebone details about the structure of the deal, which they called the United States-Ukraine ...

President Donald Trump signed a pair of executive orders on Tuesday to ease his tariffs targeting automobile and auto part ...