Scientists aim to build the first graviton detector to explore gravity's quantum nature, despite significant challenges.

The last agreement between Washington and Moscow runs out within weeks and a new one could look very different ...

North Korean leader Kim Jong Un oversaw the firing of "cutting-edge" hypersonic missiles to ready Pyongyang's nuclear forces for war, state media reported Monday, saying "geopolitical crisis" made the ...

North Korean leader Kim Jong Un oversaw the test-firing of "cutting-edge" hypersonic missiles to ready Pyongyang's nuclear forces for war, state media said Monday. Pyongyang said Sunday's test was ...

This picture released by North Korea's official Korean Central News Agency (KCNA) shows North Korean leader Kim Jong Un (R) inspecting a missile launch exercise in Pyongyang (COMBO) This combination ...

The country’s production of nuclear warheads has slowed, but its missiles may be poised to strike back fast in case of an attack, an annual assessment found. By Chris Buckley Reporting from Taipei, ...

Some physicists believe that a fifth fundamental force could be the cause of some observational anomalies. A study is investigating ways to closely examine the trajectories of well-documented ...