Recently in the Impact events Category


A new study from Western University explores the possibility that Earth's earliest life forms may have been cultivated by a meteorite impact event.

Astrobiologists have provided new information about how comets and asteroids could have delivered prebiotic chemical compounds to the early Earth.

In 1980, Alvarez and colleagues proposed that, in the transition from the Cretaceous to Paleogene, a large impactor collided with Earth being the cause of the mass extinction occurred at the limit K/Pg.

It is now understood that the accretion of terrestrial planets naturally involves giant collisions, the moon-forming impact being a well known example.

Mapping the Demise of the Dinosaurs

About 65 million years ago, an asteroid or comet crashed into a shallow sea near what is now the Yucatan Peninsula of Mexico.

Oxygen in the atmosphere and ocean rose dramatically about 600 million years ago, coinciding with the first proliferation of animal life. Since then, numerous short lived biotic events -- typically marked by significant climatic perturbations -- took place when oxygen concentrations in the ocean dipped episodically.