Spherules - Latest News on Spherules | Read Breaking News on Zee News

`Earth was bombarded by asteroids 3-4 billion years ago`

Last Updated: Thursday, April 26, 2012, 19:13

Analysing tiny "spherules" embedded in layers of rock, a team from the Purdue University in the US said they found the "first real solid evidence" of asteroid bombardment.

Tiny ‘spherules’ tell tale of Earth’s asteroid impacts

Last Updated: Thursday, April 26, 2012, 12:52

The spherules were created when asteroids crashed into the Earth, vaporizing rock that expanded into space as a giant vapour plume.