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The Neoshield project for Near-Earth object impact threat mitigation

Drube, Line and Harris, Alan W. (2016) The Neoshield project for Near-Earth object impact threat mitigation. In: International Seminars on Nuclear War and Planetary Emergencies, pp. 559-568. World Scientific. International Seminar on Nuclear War and Planetary Emergencies -­‐ 48th Session, 20-23 Aug. 2015, Erice, Italy. DOI: 10.1142/9789813148994_0043 ISBN 978-981-3148-64-2

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Official URL: http://dx.doi.org/10.1142/9789813148994_0043

Abstract

Every day Earth is hit by around 100 tonnes of cosmic material, most of it comes in the form of dust or small rocks, which burn up as meteors in the atmosphere. Sometimes, however, larger objects, asteroids or comets, enter the Earth’s atmosphere and then even relatively small objects can cause considerable damage. The object that exploded over the Russian city of Chelyabinsk in February 2013 had a diameter of only 17–20 m, yet it produced a blast wave that damaged buildings and injured some 1500 people. It entered the Earth’s atmosphere with a velocity of 65 000 km/h and, due to the frictional heating and stresses caused by compression of the air, it exploded at an altitude of some 25 km releasing an energy 30 times that of the Hiroshima bomb. The potentially devastating effects on Earth of a collision with a large asteroid or comet are now well recognized by scientists and policy makers. So the question is now, can we protect our civilization from the next major impact? NEOShield, a project funded by the European Commission’ Seventh Framework Programme, brought together an international team of 13 partner organizations from 6 countries to address the global issue of near-­‐Earth object (NEO) impact prevention. The project ran from 2012 to mid 2015, after which the NEOShield-­‐2 project funded by the European Commission’ H2020 Programme is continuing the research until fall 2017. The purpose of the projects is to carry out detailed analysis of realistic options for preventing a potentially catastrophic impact of a NEO on Earth. While a mitigation test mission is beyond the financial scope of the current project, the NEOShield technical partners, with the support of the science team, aim to provide detailed designs of appropriate test-­‐missions for the 3 most feasible mitigation concepts: kinetic impactor, gravity tractor, and blast deflection, so that it will be possible to quickly develop an actual test mission at a later stage. Project partners are also carrying out research into the mitigation-­‐relevant physical properties of NEOs, including observations of near-­‐Earth asteroids, analysis of available observational data, laboratory experiments on asteroid analogue materials, and modelling and computer simulations. The aim of the scientific work is to facilitate predictions of the outcome of deflection attempts using different techniques on a variety of NEO types.

Item URL in elib:https://elib.dlr.de/108536/
Document Type:Conference or Workshop Item (Speech)
Title:The Neoshield project for Near-Earth object impact threat mitigation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Drube, LineLine.Drube (at) dlr.dehttps://orcid.org/0000-0003-2486-8894
Harris, Alan W.alan.harris (at) dlr.deUNSPECIFIED
Date:2016
Journal or Publication Title:International Seminars on Nuclear War and Planetary Emergencies
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.1142/9789813148994_0043
Page Range:pp. 559-568
Editors:
EditorsEmail
Ragaini, Richard C.UNSPECIFIED
Publisher:World Scientific
Series Name:48th Session: The Role of Science in the Third Millennium
ISBN:978-981-3148-64-2
Status:Published
Keywords:NEO, Near-Earth asteroids, impact, asteroid deflection
Event Title:International Seminar on Nuclear War and Planetary Emergencies -­‐ 48th Session
Event Location:Erice, Italy
Event Type:international Conference
Event Dates:20-23 Aug. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: Drube, Line
Deposited On:29 Nov 2016 13:32
Last Modified:31 Jul 2019 20:05

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