Dept. of Geosciences Colloquium: Shooting a shooting star – the DART mission to impact an asteroid

David Polishook, Weizmann Institute of Science

03 January 2022, 11:00 
Shenkar Physics Building, Holcblat Hall 007 
Dept. of Geosciences Colloquium




For the first time in history, a planetary defense method is being tested. DART, NASA’s Double Asteroid Redirection Test, is on a direct trajectory to impact a satellite of an asteroid in a first-of-its-kind experiment to deal with potentially hazardous near-Earth asteroids. The mission aims to measure what is the fraction of the momentum at impact, that is used to deflect the asteroid from its current orbit, and how much will be lost on re-arranging the asteroid’s components due to the body’s weak tensile strength. The mission will not just expose the internal strength of a 200-m wide asteroids, but also has the potential to add significant knowledge about the space weathering effect, that modifies the spectral signature of asteroids, and about the formation of binary asteroids. In the talk I will present the danger imposed by asteroids, the on-going mission, and the questions it is going to answer, while highlighting my astronomical role within the mission.



Event Organizers: Dr. Roy Barkan and Dr. Asaf Inbal



Tel Aviv University makes every effort to respect copyright. If you own copyright to the content contained
here and / or the use of such content is in your opinion infringing, Contact us as soon as possible >>