A timeline-driven account based on rock-core drilling and global sediment layers: the initial fireball, tsunami and shock waves, then a two-year “impact winter” from dust and sulfur aerosols—leading t ...

The study, published on the arXiv platform, proposes a computer model in which the Universe has a total lifespan of about 33 ...

The Cretaceous-Tertiary Extinction killed off the dinosaurs 66 million years ago. Credit: Getty Images by Mike Lyvers A biosphere in crisis There is no question that Earth is losing species fast.