DART & HERA, NASA/ESA Asteroid Redirection Missions |
DART & HERA, NASA/ESA Asteroid Redirection Missions |
Nov 24 2021, 07:27 AM
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Surprised we didn't already have a thread. DART launched successfully at 0621 UTC today (23 Nov 21). Mission page here, encounter (as in collision) with small satellite of 65803 Didymos in late Sep/early Oct 2022.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Apr 21 2023, 05:15 PM
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Member Group: Members Posts: 444 Joined: 1-July 05 From: New York City Member No.: 424 |
Nature has published a cover story about DART, with five open access papers.
https://www.nature.com/nature/volumes/616/issues/7957 QUOTE Crash course Although currently there is no known threat to Earth from asteroids, strategies to protect the planet from a collision are being explored. On 26 September 2022, NASA and the Johns Hopkins Applied Physics Laboratory successfully tested one such approach: the Double Asteroid Redirection Test (DART) spacecraft was deliberately crashed into Dimorphos, a moon orbiting the small asteroid Didymos, resulting in a change in the moon’s orbit. In this week’s issue, five papers explore the test and the effects of the collision. One paper reconstructs the impact; a second looks at the change to Dimorphos’s orbit caused by the impact. A third paper reports observations from the Hubble Space Telescope of the material ejected during the collision. A fourth paper uses modelling to characterize the transfer of momentum that resulted from the impact. And the final paper reports on citizen science observations before, during and after the collision. H/t to Shannon Cofield @MarsRoverMapper, who tweeted the link. |
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