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We have monitored the Didymos-Dimorphos binary system in imaging polarimetric mode before and after the impact from the Double Asteroid Redirection Test (DART) mission. A previous spectropolarimetric study showed that the impact caused a…

The NASA Double Asteroid Redirection Test (DART) spacecraft successfully impacted the Didymos-Dimorphos binary asteroid system on 2022 September 26 UTC. We provide an update to its pre-impact mutual orbit and estimate the post-impact…

NASA's Double Asteroid Redirection Test (DART) mission will kinetically impact Dimorphos, the secondary component of the Didymos binary asteroid system, which will excite Dimorphos's dynamical state and lead to significant libration about…

Target of NASA's DART mission, the system of Didymos and Dimorphos will once again be visited by a space mission -- ESA's Hera mission, scheduled to be launch in 2024. Hera will arrive in the system approximately 4 years after the DART…

Earth and Planetary Astrophysics · Physics 2024-02-07 Gustavo Madeira , Sebastien Charnoz , Nicolas Rambaux , Philippe Robutel

While no known asteroid poses a threat to Earth for at least the next century, the catalog of near-Earth asteroids is incomplete for objects whose impacts would produce regional devastation. Several approaches have been proposed to…

Earth and Planetary Astrophysics · Physics 2023-03-07 R. Terik Daly , Carolyn M. Ernst , Olivier S. Barnouin , Nancy L. Chabot , Andrew S. Rivkin , Andrew F. Cheng , Elena Y. Adams , Harrison F. Agrusa , Elisabeth D. Abel , Amy L. Alford , Erik I. Asphaug , Justin A. Atchison , Andrew R. Badger , Paul Baki , Ronald-L. Ballouz , Dmitriy L. Bekker , Julie Bellerose , Shyam Bhaskaran , Bonnie J. Buratti , Saverio Cambioni , Michelle H. Chen , Steven R. Chesley , George Chiu , Gareth S. Collins , Matthew W. Cox , Mallory E. DeCoster , Peter S. Ericksen , Raymond C. Espiritu , Alan S. Faber , Tony L. Farnham , Fabio Ferrari , Zachary J. Fletcher , Robert W. Gaskell , Dawn M. Graninger , Musad A. Haque , Patricia A. Harrington-Duff , Sarah Hefter , Isabel Herreros , Masatoshi Hirabayashi , Philip M. Huang , Syau-Yun W. Hsieh , Seth A. Jacobson , Stephen N. Jenkins , Mark A. Jensenius , Jeremy W. John , Martin Jutzi , Tomas Kohout , Timothy O. Krueger , Frank E. Laipert , Norberto R. Lopez , Robert Luther , Alice Lucchetti , Declan M. Mages , Simone Marchi , Anna C. Martin , Maria E. McQuaide , Patrick Michel , Nicholas A. Moskovitz , Ian W. Murphy , Naomi Murdoch , Shantanu P. Naidu , Hari Nair , Michael C. Nolan , Jens Ormö , Maurizio Pajola , Eric E. Palmer , James M. Peachey , Petr Pravec , Sabina D. Raducan , K. T. Ramesh , Joshua R. Ramirez , Edward L. Reynolds , Joshua E. Richman , Colas Q. Robin , Luis M. Rodriguez , Lew M. Roufberg , Brian P. Rush , Carolyn A. Sawyer , Daniel J. Scheeres , Petr Scheirich , Stephen R. Schwartz , Matthew P. Shannon , Brett N. Shapiro , Caitlin E. Shearer , Evan J. Smith , R. Joshua Steele , Jordan K Steckloff , Angela M. Stickle , Jessica M. Sunshine , Emil A. Superfin , Zahi B. Tarzi , Cristina A. Thomas , Justin R. Thomas , Josep M. Trigo-Rodríguez , B. Teresa Tropf , Andrew T. Vaughan , Dianna Velez , C. Dany Waller , Daniel S. Wilson , Kristin A. Wortman , Yun Zhang

Some active asteroids have been proposed to be the result of impact events. Because active asteroids are generally discovered serendipitously only after their tail formation, the process of the impact ejecta evolving into a tail has never…

Didymos and Dimorphos are primary and secondary, respectively, asteroids who compose a binary system that make up the set of Near Earth Asteroids (NEAs). They are targets of the Double Asteroid Redirection Test (DART), the first test…

Earth and Planetary Astrophysics · Physics 2023-07-19 R. Machado Oliveira , O. C. Winter , R. Sfair , G. Valvano , T. S. Moura , G. Borderes-Motta

NASA's Double Asteroid Redirection Test (DART) mission is the first full-scale test of the kinetic impactor method for asteroid deflection, in which a spacecraft intentionally impacts an asteroid to change its trajectory. DART represents an…

The Double Asteroid Redirection Test (DART) is a NASA mission intended to crash a projectile on Dimorphos, the secondary component of the binary (65803) Didymos system, to study its orbit deflection. As a consequence of the impact, a dust…

Earth and Planetary Astrophysics · Physics 2022-07-20 Fernando Moreno , Adriano Campo Bagatin , Gonzalo Tancredi , Po-Yen Liu , Bruno Dominguez

On September 26, 2022, NASA's DART spacecraft impacted Dimorphos, the secondary asteroid in the (65803) Didymos system, so that the efficiency with which a satellite could divert an asteroid could be measured from the change in the system's…

Earth and Planetary Astrophysics · Physics 2023-08-31 Taylor Gudebski , Elisabeth Heldridge , Brady McGawn , Elle O Hill , Jonathan J. Swift , Henry Zhou

Didymos is a binary near-Earth asteroid. It is the target of the DART and HERA space missions. The primary body, Didymos, rotates close to the spin at which it is expected to shed mass. The secondary body, Dimorphos, is a 140 meters moon…

Earth and Planetary Astrophysics · Physics 2023-01-25 Gustavo Madeira , Sebastien Charnoz , Ryuki Hyodo

We report observations of the Didymos-Dimorphos binary asteroid system using the Atacama Large Millimeter/Submillimeter Array (ALMA) and the Atacama Compact Array (ACA) in support of the Double Asteroid Redirection Test (DART) mission. Our…

The Double Asteroid Redirection Test (DART) mission will be the first test of a kinetic impactor as a means of planetary defense. In late 2022, DART will collide with Dimorphos, the secondary in the Didymos binary asteroid system. The…

As the first asteroid deflection test, NASA's successfully hit asteroid Dimorphos (secondary of the binary asteroid 65803 Didymos) with the DART kinetic impactor on September 26, 2022. To fully characterise the physical properties of the…

Asteroid Didymos, recently targeted by the NASA DART mission, is also planned to be visited by the ESA Hera mission. The main goal of the DART mission was to impact Dimorphos, the small satellite of Didymos, which was accomplished in…

Earth and Planetary Astrophysics · Physics 2024-11-12 Bojan Novakovic , Marco Fenucci

On 26 September 2022, the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos. This demonstrated the efficacy of a kinetic impactor for planetary defense by…

NASA sent the DART (Double Asteroid Redirection Test) mission to impact Dimorphos, the satellite of the asteroid binary system (65803) Didymos. DART will release LICIACube prior to impact to obtain high-resolution post-impact images. The…

Earth and Planetary Astrophysics · Physics 2022-11-30 Gonzalo Tancredi , Po-Yen Liu , Adriano Campo-Bagatin , Fernando Moreno , Bruno Domínguez