https://freerepublic.com/tag/nonaviandinosaurs/ en-us Fri, 4 Oct 2024 13:33:07 GMT Focus Forum 15 https://freerepublic.com/focus/f-chat/4268868/posts The crater lies deep beneath the Atlantic Ocean and was formed around 66 million years ago – making it a contemporary of Chicxulub. It is thought that the asteroid hit Earth at around 72,000 kilometers (44,700 miles) per hour. Image credit: muratart/Shutterstock.com Some 66 million years ago, a massive asteroid slammed into Earth. The Chicxulub impactor, as it is called, famously wiped out the non-avian dinosaurs and left a huge crater at the edge of the Yucatán peninsula – but it may not have acted alone. New research has revealed that a second, smaller space rock smashed into our planet... IFL Science https://freerepublic.com/focus/f-chat/4268868/posts#comment Fri, 4 Oct 2024 13:33:07 GMT