Hebrew University researchers analyze effects of meteor crash

What happens when a large meteor crashes into the Earth? The impact of a large meteorite releases an enormous amount of energy that evaporates, melts and fractures areas surrounding the impact over distances that can range over hundreds of kilometers. Although the subject of abundant recent interest, little is directly known about the propagation of damage during these events.

Three researchers from the Hebrew University of Jerusalem have come up with a new picture of damage propagation, which explains the distinctive rock deformations generated by the high-energy shockwaves produced in these extreme conditions. These results provide new insight into meteor impact dynamics as well as dissipative mechanisms in materials subjected to sudden, extremely intense fluxes of energy. Using these results, analysis of deformed rock structures surrounding the site of an intense explosion or impact can provide a quantitative measure of its strength – even if the event occurred a billion years ago.

These findings will be published in the prestigious scientific journal Nature on Thursday, July 18, in the article, “Dynamic Fracture by Large Extraterrestrial Impacts as the Origin of Shatter Cones,” by Ph.D. candidate Amir Sagy, Physics Prof. Jay Fineberg and Geology Prof. Ze’ev Reches.

The article is embargoed until 9 p.m. (2 p.m. EST) on Wednesday, July 17.

For further information, contact:

Heidi Gleit, HU foreign press liaison: tel. 02-588-2904; cell. 064-454-593; email heidig@savion.cc.huji.ac.il

Orit Sulitzeanu, HU spokeswoman: tel. 02-588-2811

Media Contact

Heidi Gleit Hebrew University

All news from this category: Earth Sciences

Earth Sciences (also referred to as Geosciences), which deals with basic issues surrounding our planet, plays a vital role in the area of energy and raw materials supply.

Earth Sciences comprises subjects such as geology, geography, geological informatics, paleontology, mineralogy, petrography, crystallography, geophysics, geodesy, glaciology, cartography, photogrammetry, meteorology and seismology, early-warning systems, earthquake research and polar research.

Back to the Homepage

Comments (0)

Write comment

Latest posts

Researchers confront optics and data-transfer challenges with 3D-printed lens

Researchers have developed new 3D-printed microlenses with adjustable refractive indices – a property that gives them highly specialized light-focusing abilities. This advancement is poised to improve imaging, computing and communications…

Research leads to better modeling of hypersonic flow

Hypersonic flight is conventionally referred to as the ability to fly at speeds significantly faster than the speed of sound and presents an extraordinary set of technical challenges. As an…

Researchers create ingredients to produce food by 3D printing

Food engineers in Brazil and France developed gels based on modified starch for use as “ink” to make foods and novel materials by additive manufacturing. It is already possible to…

Partners & Sponsors

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close