Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign. Their abrupt extinction reshaped Earth’s ecosystems and set the stage for mammals ...

About 66 million years ago – perhaps on a downright unlucky day in May – an asteroid smashed into our planet. Even groups that weathered the catastrophe, such as mammals, fishes and flowering plants, ...

An asteroid is expected to eventually hit Earth, highlighting the importance of preparing for such an event. This video ...

Fossils from Denmark suggest ammonites survived the asteroid extinction far longer than believed, raising new questions about ...

Scientists have created a new map of "mega ripples" on the seafloor caused by the Chicxulub asteroid impact that wiped out the dinosaurs, revealing further the events that led to the devastating mass ...

Evidence for ammonite survival into the Paleogene era is solid, a new study confirms, indicating that these ancient mollusks ...

It had quite an impact — striking with the force of 10 million atomic bombs. Sixty-six million years ago, the asteroid that slammed into what is now the Yucatán Peninsula caused a mass extinction ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Stewart Edie, Smithsonian Institution (THE CONVERSATION) About 66 million years ago – ...