"The right arises to launch a retaliatory strike with weapons of mass destruction," Dmitry Medvedev said on Tuesday.

Now 38, Nadal bid farewell to the sport he ruled for nearly two decades. His exit comes after Spain's defeat to the ...

Rafael Nadal ended his career on Tuesday (Wednesday in Manila) as Spain were elimintated from the Davis Cup finals, after a spectacular career that brought him 22 Grand Slam titles.

Rafael Nadal won 22 Grand Slam titles during his career and was part of some of the most incredible duels in men's tennis ...

A long-standing enigma surrounding the Crab Pulsar, a neutron star at the center of the Crab Nebula, may have been unraveled.

Vladimir Putin has signed an update to Russia's nuclear doctrine, coinciding with the 1,000th day of the war in Ukraine.

Dmitry Medvedev issued a strongly-worded statement, condemning a recent US decision allowing Ukraine to launch missiles into ...

Putin will share Russia's nuclear deterrence with its allies—mirroring NATO's "attack on one member is an attack on all" doctrine.

Moscow's decision to lower the threshold for a nuclear attack came as the Kremlin responded furiously to the U.S. allowing Ukraine to strike inside Russia with American weapons.

A theoretical astrophysicist from the University of Kansas may have solved a nearly two-decade-old mystery over the origins ...

What He Did: Became the first man in 57 years to win an Australian Open final after dropping the first two sets. What He Said ...

Tennis Hot Topics After Jannik Sinner had secured his first Nitto ATP Finals crown in Turin with an emphatic 6-4, 6-4 triumph ...