Possible "superkilonova" exploded not once but twice
Peer-Reviewed Publication
Updates every hour. Last Updated: 16-Dec-2025 23:16 ET (17-Dec-2025 04:16 GMT/UTC)
Astronomers have found evidence for a possible first-of-its-kind "superkilonova," or a kilonova spurred by a supernova. Such an event has been hypothesized but never seen.
More than a decade ago, Northwestern chemists and materials scientists reported in Nature the first solid-state solar cell based on a halide perovskite semiconductor — an advance that ultimately helped launch one of the fastest-growing revolutions in solar energy.
Soil is one of Earth’s largest carbon sinks, second to the ocean. New study discovers a key iron mineral in soil has a nanoscale mosaic of positive and negative charges. Varied charges, hydrogen bonding and strong chemical bonds enable mineral to trap carbon. Findings help explain why some carbon is locked in soils for centuries.
Chemist Bruce Moyer, a Corporate Fellow at the Department of Energy’s Oak Ridge National Laboratory, has won the 2025 Carl Hanson Award, the highest international recognition for achievement in solvent extraction. The International Solvent Extraction Community bestows the medal every three years based on nominations from the global community.