The gold standard for determining the age of ancient rocks is measuring the radioactive decay of isotopes of uranium into lead in minerals known as zircons. But not all rocks contain zircons, so ...

The growth rate of the atmospheric abundance of methane (CH 4) reached a record high of 15.4 ppb yr −1 between 2020 and 2022, but the mechanisms driving the accelerated CH 4 growth have so far been ...

This paper gives a brief history of the scientific considerations leading to the development of laser isotope separation (LIS) processes. The close relationship of LIS to the broader field of ...

Teeth can tell a life’s story, even when they’re 150 million years old. One of the new frontiers in paleontological research ...

Breast cancer is the most common cancer in women in the United States, except for skin cancers. It accounts for about 30% (or 1 in 3) of all new female cancers each year. The American Cancer Society's ...

When most people hear the word uranium, they think of mushroom clouds, Cold War standoffs or the glowing green rods from ...

In Vermont, researchers have investigated the types of creepy, crawly bugs that their avian predators consume and may have ...

Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.

Demand for the ornaments, jewelry, and other luxury items carved from the ivory in elephant tusks has led poachers to ...

There are claims and counterclaims on whether Irans' nuclear capabilities have been set back by years in the Israeli-US air strikes during the just-concluded 12-day war. The strikes targeted nuclear ...