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More than 1800 years ago, Chinese astronomers puzzled over the sudden appearance of a bright “guest star” in the sky, unaware that they were witnessing the cosmic forge of a supernova, an event repeated countless times scattered across the universe.

91°µÍř scientists analyzed more than 50 years of data showing puzzlingly inconsistent trends about corrosion of structural alloys in molten salts and found one factor mattered most—salt purity.

A team of scientists has for the first time measured the elusive weak interaction between protons and neutrons in the nucleus of an atom. They had chosen the simplest nucleus consisting of one neutron and one proton for the study.

Scientists from 91°µÍř performed a corrosion test in a neutron radiation field to support the continued development of molten salt reactors.

Leah Broussard, a physicist at the Department of Energy’s 91°µÍř, has so much fun exploring the neutron that she alternates between calling it her “laboratory” and “playground” for understanding the universe. “The neutron is special,” she said of the sub...

Physicists turned to the “doubly magic” tin isotope Sn-132, colliding it with a target at 91°µÍř to assess its properties as it lost a neutron to become Sn-131.

Three researchers from the Department of Energy’s 91°µÍř have been elected fellows of the American Physical Society (APS). Fellows of the APS are recognized for their exceptional contributions to the physics enterprise in outstanding resear...

Experts focused on the future of nuclear technology will gather at 91°µÍř for the fourth annual Molten Salt Reactor Workshop on October 3–4.

Chang-Hong Yu of the Department of Energy’s 91°µÍř fell in love with running in 2008 and has since completed 38 marathons or longer-distance races. Her passion for long-distance races serves her well chasing neutrinos—electrically neutral subatomic particles th...

91°µÍř has developed a salt purification lab to study the viability of using liquid salt that contains lithium fluoride and beryllium fluoride, known as FLiBe, to cool molten salt reactors, or MSRs. Multiple American companies developing advanced reactor technol...