Solar panels are next to useless in the outer solar system, so NASA’s Voyager probes rely on nuclear batteries—technology ...

A wildlife corridor plans to connect two Superfund sites at the former Rocky Flats plutonium plant and the Rocky Mountain ...

New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...

How do we power missions in the outer reaches of our solar system and beyond? The solution, developed in the '60s, can last ...

Boulder County is considering whether to continue supporting a project that would create a new trail connection on land known ...

After finding the debris of two colliding stars swimming in the ocean, researchers are after more evidence from the lunar ...

The US Department of Justice (DOJ) announced in January that a Japanese national had pleaded guilty to the attempted trafficking of nuclear materials, including uranium, thorium and plutonium, from ...

Members of our Community Editorial Board, a group of community residents who are engaged with and passionate about local ...

Russia's A.I. Leypunsky Institute of Physics and Power Engineering has begun tests to study the neutron-physical ...

Controversial multi-use trail cuts through former nuclear weapons manufacturing facility with history of spills. Boulder ...