A 15-mile wide asteroid creates Earth’s largest crater – Bigger than we anticipated

About two billion years ago, an impactor – most likely an asteroid – hurtled toward our planet Earth, crashing in the southwest of what is now Johannesburg, South Africa. Travelling at a velocity of 15 kilometres per second, the impactor created the world’s oldest and largest known impact structure – known as the Vredefort crater.

Based on previous research, the impactor, which is 15 kilometres in size and traveling at a velocity of 15 kilometres per second, would produce a crater about 172 kilometres in diameter. However, current estimates, based on new geological evidence, suggest that the structure’s original diameter would have been between 250 and 280 kilometres (approximately 155 and 174 miles) during the time of the impact.

A new research from the University of Rochester suggests that the impactor may have been much bigger and would have had devastating consequences across the planet.

An impactor–most likely an asteroid–hurtled toward Earth about two billion years ago, crashing into the planet near present-day Johannesburg, South Africa. The impactor formed the Vredefort crater, what is today the biggest crater on our planet. Using updated simulation data, University of Rochester researchers discovered the impactor that formed the Vredefort crater was much larger than previously believed. Credit: NASA Earth Observatory image by Lauren Dauphin / University of Rochester illustration by Julia Joshpe

Natalie Allen, a PhD student at John Hopkins University and the first author of the paper, along with Miki Nakajima, an assistant professor of Earth and environmental sciences, and their colleagues conducted simulations to match the updated size of the crater. The team demonstrated that an impactor would have to be much larger – about 20 to 25 kilometres – and travelling at a velocity of 15 to 20 kilometres per second to explain a crater 250 kilometres in size.

This, according to the researchers, means the impactor that formed the Vredefort crater would have been larger than the asteroid that formed the Chicxulub crater, famously linked to the dinosaur extinction event.

If the Vredefort crater was even larger and the impact more energetic than that which formed the Chicxulub crater, the Vredefort impact may have caused even more catastrophic global consequences, the researchers said in a statement.

The simulations also allowed the team to study the material ejected by the impact and the distance the material travelled from the Vredefort crater.

The research not only provides a more accurate understanding of the impact that formed Earth’s largest crater, but will also allow researchers to better simulate impact events on Earth and other planets.

Related Posts

Video captures numerous unidentified flying objects hovering above Korolyov City, Russia.

A massive UFO Orb fleet filmed over Korolyov, Rυssia iп 2020 was seпt to UFO Sightiпg’s Footage Iпstagram page. This is a great UFO Orb fleet filmed….

Αlieпs Αre Reprodυciпg With Hυmaпs – Oxford Professor Comes With Evideпce

Αccordiпg to a professor from the Uпiversity of Oxford, extra-terrestrial eпtities might be prodυciпg hybrids desceпdaпts by maiпtaiпiпg iпtimate relatioпs with hυmaпs. Back iп 2001, more thaп…

Straпge creatυres defiпitely пot from Earth foυпd iп Arizoпa, USA

Experts are coпdυctiпg DNA tests to fiпd oυt the trυe origiп of this straпge creatυre Althoυgh пo oпe kпows the horizoпtal aпd vertical пose of the alieп…

2023’s Massive Collection of Unsettling Trail Camera Videos

we will be discussing some of the most spine-chilling creatures caught on trail cameras in 2023. From unexplainable phenomena to unidentified creatures and killers, this year has…

Unanswered Question: The Fermi Paradox and the Elusive Search for Extraterrestrial Life

The search for extraterrestrial life has led scientists to conclude that humans may not be ready for contact with alien civilizations. Despite years of exploration, scientists have…

Ex-service members release NASA video showcasing a UK-made spacecraft spanning 3,200 km

Bob Deap is a former member of NATO intelligence who has been involved in significant UFO studies. He has also served in high-ranking military positions. Now that…

Leave a Reply

Your email address will not be published. Required fields are marked *