In death of dinosaurs, it was all about the asteroid — not volcanoes

New research published in Science argues that environmental impacts from massive volcanic eruptions in India did not play a direct role in the mass extinction that killed the dinosaurs. It was all about the impact of an asteroid. The discovery was made by climate scientist James Zachos and earth science alumni Donald Penman, Richard Norris, and Peter Lippert.
Original story from UCSC Newscenter.





Galaxy found to float in a tranquil sea of halo gas

“The signal from the fast radio burst exposed the nature of the magnetic field around the galaxy and the structure of the halo gas. The study proves a new and transformative technique for exploring the nature of galaxy halos,” said J. Xavier Prochaska, professor of astronomy and astrophysics at UC Santa Cruz and lead author of a paper on the new findings published online September 26 in Science.