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#dartmission

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V Martín<p>Thread with a few selected <a href="https://mastodon.social/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> animations from Farnham et al. "High-Speed Boulders and the Debris Field in DART Ejecta"<br><a href="https://arxiv.org/abs/2506.16694" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2506.16694</span><span class="invisible"></span></a></p><p>I have slowed down the animations to my liking, alt text is from the authors' descriptions. All original files available at<br><a href="https://drum.lib.umd.edu/items/968963ed-ccee-4532-af5d-6e6e362d6d15/full" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">drum.lib.umd.edu/items/968963e</span><span class="invisible">d-ccee-4532-af5d-6e6e362d6d15/full</span></a></p><p>ZIP file: <a href="https://drum.lib.umd.edu/bitstreams/d2869cf0-cc90-458b-bdcf-945223ffe4c2/download" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">drum.lib.umd.edu/bitstreams/d2</span><span class="invisible">869cf0-cc90-458b-bdcf-945223ffe4c2/download</span></a></p><p>h/t <span class="h-card" translate="no"><a href="https://mastodon.online/@michael_w_busch" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>michael_w_busch</span></a></span> </p><p>🧵 1/4</p>
Michael Busch<p>For those who have not read the entire paper:</p><p>Tony Farnham and company have tracked boulders in the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> ejecta, identifying clusters of boulders produced by the spacecraft's impact fragmenting specific blocks on Dimorphos' surface.</p><p>Woah.</p>
Michael Busch<p>Today on the <a href="https://mastodon.online/tags/arXiv" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arXiv</span></a>:</p><p>Farnham et al. 2025, "High-Speed Boulders and the Debris Field in DART Ejecta" - <a href="https://arxiv.org/abs/2506.16694" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2506.16694</span><span class="invisible"></span></a></p><p><a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> science with predictions for the <a href="https://mastodon.online/tags/HeraMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HeraMission</span></a>.</p><p>And demonstrating how things can go sideways in a collision.</p>
Michael Busch<p>Today on the <a href="https://mastodon.online/tags/arXiv" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arXiv</span></a> :</p><p>López-Oquendo et al. 2025, "Thermal and Optical Characterization of Near-Earth Objects: Science Commissioning of the Recently Upgraded Mid-Infrared Camera MIRSI" - <a href="https://arxiv.org/abs/2506.13943" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2506.13943</span><span class="invisible"></span></a></p><p>Including observations of Didymos before and after the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> impact.</p><p>Consistent with other observations of the ejecta (including from ALMA as detailed in Roth et al. 2023).</p>
Michael Busch<p>Today in the Planetary Science Journal:</p><p>Kolokolova et al. 2025, "Characterization of the DART Ejecta Using Computer Modeling of the Ground-based and HST Photopolarimetric Data" - <a href="https://iopscience.iop.org/article/10.3847/PSJ/adda47" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/PSJ/adda47</span></a></p><p><a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a></p>
Michael Busch<p>Steve Chesley describes the heliocentric orbit change for Didymos from the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> impact, rather that the orbit change of Dimorphos about Didymos.</p><p>~12 microns/second, measured by occultation timing.</p><p>Lots of science from chasing shadows.</p><p><a href="https://mastodon.online/tags/PDC2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PDC2025</span></a></p>
Michael Busch<p><a href="https://mastodon.online/tags/PDC2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PDC2025</span></a> resumes with <span class="h-card" translate="no"><a href="https://ohai.social/@schmemela" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>schmemela</span></a></span> leading discussion of different asteroid deflection methods; including both the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> &amp; other work on kinetic impact deflection and things like gravity tractor deflection.</p>
Michael Busch<p>The last panel title is a reference to "The Expanse".</p><p>But Andy Cheng, lead investigator for the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> to demonstrate asteroid deflection, also previously worked on the NEAR Shoemaker mission to Eros.</p><p>So Eros did in fact change everything where asteroid science is concerned.</p>
Michael Busch<p>Today on the <a href="https://mastodon.online/tags/arXiv" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arXiv</span></a> :</p><p>Langner et al. 2025, "Secondary impact debris in the Didymos system: what could be observed by Hera?" - <a href="https://arxiv.org/abs/2503.08158" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2503.08158</span><span class="invisible"></span></a></p><p>Describing possibilities for the <a href="https://mastodon.online/tags/HeraMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HeraMission</span></a> observing lingering debris from the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> impact hitting one of the asteroids.</p>
Michael Busch<p>Today on the <a href="https://mastodon.online/tags/arXiv" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arXiv</span></a> :</p><p>Richardson et al. 2025, "The Dynamical State of the Didymos System Before and After the DART Impact" - <a href="https://arxiv.org/abs/2502.14990" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2502.14990</span><span class="invisible"></span></a></p><p>Reviewing the results of the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> impact.</p><p>"The largest uncertainty in the momentum transfer enhancement factor of the DART impact remains the mass of Dimorphos, which will be resolved by the <a href="https://mastodon.online/tags/HeraMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HeraMission</span></a> ."</p>
Michael Busch<p>Today in the Planetary Science Journal:</p><p>Stickle et al. 2025, "Dimorphos's Material Properties and Estimates of Crater Size from the DART Impact" - <a href="https://iopscience.iop.org/article/10.3847/PSJ/ad944d" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/PSJ/ad944d</span></a></p><p>Estimating the crater diameter from the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> impact as 40-60 m and awaiting constraints by the <a href="https://mastodon.online/tags/HeraMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HeraMission</span></a> .</p><p>As an aside:</p><p>This is why I wonder about the risk of the pending CNSA asteroid deflection demonstration shattering its target object.</p>
V Martín<p><span class="h-card" translate="no"><a href="https://mastodon.online/@michael_w_busch" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>michael_w_busch</span></a></span> it bothers me so much that the "official" animations are so shaky, it never felt that way watching it live. Obviously because of the frame rate, but still...</p><p>Here's for example <span class="h-card" translate="no"><a href="https://mastodon.social/@65dBnoise" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>65dBnoise</span></a></span> 's stabilized version but running at half-speed. Original with ALT text at <a href="https://fosstodon.org/@65dBnoise/109073020138233000" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fosstodon.org/@65dBnoise/10907</span><span class="invisible">3020138233000</span></a></p><p><a href="https://mastodon.social/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a></p>
Michael Busch<p>Animation from the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> on final approach to run into the asteroid <a href="https://mastodon.online/tags/Dimorphos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Dimorphos</span></a> in 2022 September.</p><p>Dimorphos is the smaller one.</p><p><a href="https://www.youtube.com/watch?v=N-OvnVdZP_8" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=N-OvnVdZP_</span><span class="invisible">8</span></a></p>
Michael Busch<p>For those unaware:</p><p>NASA and ESA have demonstrated kinetic impactor asteroid deflection, running a spacecraft into an asteroid, with the <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> and the <a href="https://mastodon.online/tags/HeraMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HeraMission</span></a> .</p><p>I would like to see a gravity tractor demonstration, using a spacecraft's gravity to pull an asteroid around, but it is slower.</p>
Michael Busch<p>Today in the Planetary Science Journal:</p><p>DeCoster et al. 2024, "Statistical Analysis of Near-surface Structure and Material Properties on Momentum Transfer in Rubble Pile Targets Impacted by Kinetic Impactors" - <a href="https://iopscience.iop.org/article/10.3847/PSJ/ad7cff" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/PSJ/ad7cff</span></a></p><p><a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a></p>
Michael Busch<p>Today in the Planetary Science Journal:</p><p>Vincent et al. 2024, "Macroscale Roughness Reveals the Complex History of Asteroids Didymos and Dimorphos" - <a href="https://iopscience.iop.org/article/10.3847/PSJ/ad7a01" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">iopscience.iop.org/article/10.</span><span class="invisible">3847/PSJ/ad7a01</span></a> .</p><p>More <a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> science in advance of the <a href="https://mastodon.online/tags/HeraMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HeraMission</span></a> arriving back at <a href="https://mastodon.online/tags/Didymos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Didymos</span></a> .</p>
scinexx - das wissensmagazin<p>Asteroiden-Sonde Hera ist gestartet. ESA-Raumsonde soll Folgen des DART-Rammversuchs vor Ort untersuchen. <a href="https://nrw.social/tags/HERA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HERA</span></a> <a href="https://nrw.social/tags/ESA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESA</span></a> <a href="https://nrw.social/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> <a href="https://nrw.social/tags/Raumfahrt" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Raumfahrt</span></a> <a href="https://nrw.social/tags/Raumsonde" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Raumsonde</span></a> <a href="https://nrw.social/tags/Asteroiden" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Asteroiden</span></a><br><a href="https://www.scinexx.de/news/kosmos/asteroiden-sonde-hera-ist-gestartet/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">scinexx.de/news/kosmos/asteroi</span><span class="invisible">den-sonde-hera-ist-gestartet/</span></a></p>
Trevor McLeod<p><a href="https://mastodon.social/tags/Hera" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Hera</span></a> is off to investigate results of the <a href="https://mastodon.social/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> </p><p><a href="https://mastodon.social/tags/esa" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>esa</span></a> <a href="https://mastodon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://mastodon.social/tags/exploration" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>exploration</span></a> <a href="https://mastodon.social/tags/asteroids" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>asteroids</span></a> </p><p><a href="https://arstechnica.com/space/2024/10/european-mission-departs-earth-to-investigate-an-asteroid-wrecked-by-nasa/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">arstechnica.com/space/2024/10/</span><span class="invisible">european-mission-departs-earth-to-investigate-an-asteroid-wrecked-by-nasa/</span></a></p>
Michael Busch<p><a href="https://mastodon.online/tags/DPS2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DPS2024</span></a> and <a href="https://mastodon.online/tags/TeamRadar" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TeamRadar</span></a> continued:</p><p><span class="h-card" translate="no"><a href="https://mastodon.social/@PlanetTreky" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>PlanetTreky</span></a></span> et al., "On the Radar Detectability of Near-Earth Asteroid Surface Refreshing Processes" - <a href="https://submissions.mirasmart.com/DPS56/Itinerary/PresentationDetail.aspx?evdid=209" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">submissions.mirasmart.com/DPS5</span><span class="invisible">6/Itinerary/PresentationDetail.aspx?evdid=209</span></a></p><p>Zambrano-Marin et al., "Shape and Mutual Orbit Modeling of Binary Near-Earth Asteroid 2020 BX12" - <a href="https://submissions.mirasmart.com/DPS56/Itinerary/PresentationDetail.aspx?evdid=208" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">submissions.mirasmart.com/DPS5</span><span class="invisible">6/Itinerary/PresentationDetail.aspx?evdid=208</span></a></p><p>Naidu et al., "Orbital and physical characterization of asteroid Dimorphos following the DART impact" - <a href="https://submissions.mirasmart.com/DPS56/Itinerary/PresentationDetail.aspx?evdid=210" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">submissions.mirasmart.com/DPS5</span><span class="invisible">6/Itinerary/PresentationDetail.aspx?evdid=210</span></a></p><p><a href="https://mastodon.online/tags/DARTMission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DARTMission</span></a> .</p>
Spektrum (inoffiziell)Im Jahr 2022 schlug eine NASA-Sonde in den Asteroidenmond Dimorphos ein, um ihn von seiner Bahn abzulenken. Nun soll eine weitere Mission klären, was dabei genau passiert ist.<a href="https://anonsys.net/search?tag=Didymos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Didymos</span></a> <a href="https://anonsys.net/search?tag=Dimorphos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Dimorphos</span></a> <a href="https://anonsys.net/search?tag=Planetenverteidigung" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Planetenverteidigung</span></a> <a href="https://anonsys.net/search?tag=DART" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DART</span></a> <a href="https://anonsys.net/search?tag=DART-Mission" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DART-Mission</span></a> <a href="https://anonsys.net/search?tag=NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://anonsys.net/search?tag=ESA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESA</span></a> <a href="https://anonsys.net/search?tag=Asteroid" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Asteroid</span></a> <a href="https://anonsys.net/search?tag=Weltraum" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Weltraum</span></a> <a href="https://anonsys.net/search?tag=All" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>All</span></a> <a href="https://anonsys.net/search?tag=Kosmos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Kosmos</span></a> <a href="https://anonsys.net/search?tag=Astronomie" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Astronomie</span></a><br><a href="https://www.spektrum.de/news/hera-mission-raumsonde-ist-auf-dem-weg-zum-asteroiden-dimorphos/2236132" rel="nofollow noopener" target="_blank">Raumsonde ist auf dem Weg zum Asteroiden Dimorphos</a>