This Day in Alaskan History-March 31st, 1915
Scientists Say Second Killer Asteroid May Have Struck Earth
Scientists are investigating the possibility that a second asteroid hit Earth about the same time as the one believed to have killed off nearly all dinosaur life. The investigation is linked to a smaller crater recently discovered in the ocean. Researchers say the crater may have been created by a large asteroid. Scientists have long believed that […]
New Research Supports Hypothesis that Asteroid Contributed to Mass Extinction
First African evidence to support hypothesis of an asteroid impact that contributed to the extinction of large animals 12 800 years ago. Image: Map showing simular platuinum spikes throughout the globe. Credit: Francis Thackeray | Wit University A team of scientists from South Africa has discovered evidence partially supporting a hypothesis that Earth was struck […]
The First Day of the Dinosaur Extinction
When the asteroid that wiped out the dinosaurs slammed into the planet 66 million years ago, the impact set wildfires, triggered tsunamis and blasted so much sulfur into the atmosphere that it blocked the sun, which caused the global cooling that ultimately doomed our giant predecessors. That’s the scenario scientists have hypothesized. Now, a new […]