About 2 billion years ago, an impactor hurtled toward Earth, crashing into the planet in an area near present-day Johannesburg, South Africa. The impactor—most likely an asteroid—formed what is today ...

Ancient impacts played a powerful role in Earth’s complex history. On other Solar System bodies like the moon or Mercury, the impact history is preserved on their surfaces because there’s nothing to ...

The popular mental image of an enormous impact crater is an obvious circular depression seen from space. However, the Vredefort crater in South Africa dispels this conception entirely. This location ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's depiction of an asteroid hitting Earth. In recent research published by myself and my colleague Tony Yeates in the ...

Impact craters and their broader structures can be visible in a geologic map, like a bullseye. But what geophysical traces remain at the structure’s outermost edges?

Acknowledgment: I’d like to thank my colleague Tony Yeates, who originated the view of the Deniliquin multi-ring structure as an impact structure – and who was instrumental to this work. In recent ...

Researchers developed a more accurate simulation of the impact that formed Earth's largest crater -- Vredefort crater -- nearly two billion years ago. They found the impactor (most likely an asteroid) ...

In recent research published by myself and my colleague Tony Yeates in the journal Tectonophysics, we investigate what we believe—based on many years of experience in asteroid impact research—is the ...

Acknowledgment: I’d like to thank my colleague Tony Yeates, who originated the view of the Deniliquin multi-ring structure as an impact structure – and who was instrumental to this work. In recent ...