Tree Rings May Hold Clues to Impacts of Supernovas on Earth

Daniel Strain University of Colorado Boulder Massive explosions of energy happening thousands of light-years from Earth may have left traces in our planet’s biology and geology, according to new research by CU Boulder geoscientist Robert Brakenridge. The study, published this month in the International Journal of Astrobiology, probes the impacts of supernovas, some of the most violent events in the … Continue reading →