Scientists puzzled by asteroids that hit Earth 35 million years ago and seemingly left no climate impacts

In this dramatic illustration, a meteor falls toward Earth from space. A pair of asteroids that rammed into Earth more than 35 million years ago seemingly had no climate impacts, scientists said Wednesday - (Getty Images/iStock)

Researchers say they are surprised to discover that two massive asteroids that slammed into the Earth 35 million years ago caused no real climate impact.

After the asteroid that wiped out the dinosaurs hit what is now the Yucatan Peninsula more than 30 million years before these asteroids, its explosive energy resulted in irreversible climate change. It was those changes after the impact that likely caused the global mass extinction.