. 24/7 Space News .
IRON AND ICE
The asteroids Ryugu and Bennu were formed by the destruction of a large asteroid
by Staff Writers
Paruis, France (SPX) May 28, 2020

Sequence of images showing the formation of an aggregate by the reaccumulation of fragments produced during the disruption of an asteroid. Its final shape, five hours after the beginning of the process, is similar to that of Bennu and Ryugu.

What is the origin of the asteroids Bennu and Ryugu, and of their spinning-top shape? An international research team led by Patrick Michel, a CNRS researcher at the Laboratoire Lagrange and Ronald-Louis Ballouz from the University of Arizona, proposes an answer to this question in an article published in Nature Communications on May 27, 2020.

Numerical simulations of large asteroid disruptions, such as those that take place in the asteroid belt between Mars and Jupiter, show that during such events, fragments are ejected and then reaccumulate forming aggregates, some of which have a spinning-top shape.

The simulations also show that Bennu and Ryugu may have formed from the disruption of the same parent asteroid even though their levels of hydration are different. The scientists conclude that the overall properties of these asteroids could directly result from the disruption of their parent body.

The analysis of return samples from Ryugu and Bennu by the Hayabusa2 (JAXA) and OSIRIS-REx (NASA) spacecraft will allow us to verify this by measuring precisely their composition and by determining their formation age.

Research Report: "Collisional formation of top-shaped asteroids and implications for the origins of Ryugu and Bennu"


Related Links
CNRS
Asteroid and Comet Mission News, Science and Technology


Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly


paypal only
SpaceDaily Contributor
$5 Billed Once


credit card or paypal


IRON AND ICE
UH ATLAS telescope discovers first-of-its-kind asteroid
Honolulu HI (SPX) May 22, 2020
We often think of asteroids and comets as distinct types of small bodies, but astronomers have discovered an increasing number of "crossovers." These objects initially appear to be asteroids, and later develop activity, such as tails, that are typical of comets. Now, the University of Hawaii's Asteroid Terrestrial-impact Last Alert System (ATLAS) has discovered the first known Jupiter Trojan asteroid to have sprouted a comet-like tail. ATLAS is a NASA-funded project ... read more

Comment using your Disqus, Facebook, Google or Twitter login.



Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

IRON AND ICE
No SpaceX T-shirts for tourists at Cape Canaveral

Airbus wins ESA contract to construct third European Service Module for NASA's Orion spacecraft

NASA seeking US Citizens for social isolation study for Moon and Mars missions

Barrett, Raymond speak with U.S. astronaut ahead of historic launch

IRON AND ICE
Crew Dragon DEMO-2 mission ready for new era for human spaceflight

First test of Virgin Orbit rocket fails to accomplish goal

NASA astronauts will test new SpaceX capsule, execute spacewalks

Trump to attend SpaceX launch; As NASA says go for May 27 launch

IRON AND ICE
Air deliveries bring NASA's Perseverance Mars rover closer to launch

MAVEN maps electric currents around Mars that are fundamental to atmospheric loss

The detective aboard NASA's Perseverance Rover

NASA's Curiosity Rover Finds Clues to Chilly Ancient Mars Buried in Rocks

IRON AND ICE
China space program targets July launch for Mars mission

More details of China's space station unveiled

China's tracking ship Yuanwang-5 back from rocket monitoring mission

China's Kuaizhou rocket industrial park partially operational

IRON AND ICE
New UK-based space team launches to boost sector and economy

Harwell Space Cluster launches 10-year strategy to become UK Gateway to Space

Study explores space's impact on our daily lives

Strings of pearls in the night sky - the Starlink satellite project

IRON AND ICE
Machine-learning tool could help develop tougher materials

SpaceChain invests in Core Semiconductor to drive open Direct Satellite-to-Devices Communication

Solving the space junk problem

New Army 3-D printing study shows promise for predictive maintenance

IRON AND ICE
Terrestrial bacteria can grow on nutrients from space

Astronomers create cloud atlas for hot, Jupiter-like exoplanets

Galactic crash may have triggered Solar System formation

The bold plan to see continents and oceans on another earth

IRON AND ICE
SOFIA finds clues hidden in Pluto's haze

New evidence of watery plumes on Jupiter's moon Europa

Telescopes and spacecraft join forces to probe deep into Jupiter's atmosphere

Newly reprocessed images of Europa show 'chaos terrain' in crisp detail









The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.