Tehran has confirmed that its top security official Ali Larijani, secretary of Iran’s Supreme National Security Council, has been killed. Follow for live news updates.

Ali Larijani, a key architect of Iran’s security and nuclear policy, was killed with his son in a strike, marking a major blow to the country’s political leadership.

Diamonds are famous for their strength, but scientists have long suspected that another form of diamond might be even harder.

When you think of glass, you probably picture something fragile and brittle, not a material built for high-stress electromechanical components. However, researchers at Germany's Saarland University ...

Scientists are exploring a new type of optical atomic clock based on ytterbium-173 ions that could help define the future standard for measuring time.

This regulation didn't make anyone safer but it did make it harder to build nuclear energy projects in the United States.

The launches came as the U.S. and South Korean militaries conduct their annual springtime exercises involving thousands of ...

Nuclear isomers are crucial probes for studying the structure of nuclei. Unlike chemical isomers—which have the same chemical formula but different arrangements of atoms—nuclear isomers are nuclei ...

Gold and other heavy elements are born in some of the universe’s most violent events—but scientists still struggle to understand the nuclear steps that create them. Now, nuclear physicists have ...

Every second, hundreds to thousands of molecules move through thousands of nuclear pores in each of your cells. A new high-definition view reveals the machine in action.

Physicists working with molybdenum-84, a nucleus containing exactly 42 protons and 42 neutrons, have found that this seemingly balanced atom defies one of nuclear physics’ longest-standing ...

Physicists have discovered a surprising new “Island of Inversion” in a place no one expected: among nuclei where the number ...