Dark energy propels the universe to expand faster and faster. Researchers are using simulations to test different conceptions about how this happens.
Argonne National Laboratory
Thousands of tiny systems called atomic nuclei – specific combinations of protons and neutrons – prove extremely difficult to study but have big implications for nuclear stockpile stewardship. To describe all of the nuclei and the reactions between them, a nationwide collaboration is devising powerful algorithms that run on high-performance computers.