Live and recent posts from across the Fediverse tagged #dartmission, aggregated by home.social.
Scientists Say We Should Nuke Dangerous Asteroids—Just Not the Way You Think
Scientists in China say a nuclear explosion could be the most effective way to stop a large asteroid—and…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #asteroidimpact #asteroids #dartmission
https://www.newsbeep.com/us/753145/
Patrick Michel updates #ACM2026 on the #HeraMission.
Quotes the surface ages for Didymos and Dimorphos as 12.5 million years and <300,000 years respectively.
That was before the #DARTMission impact.
The #HeraMission and also the #DARTMission.
QT ESA Operations @operations.esa.int
Humans changed an asteroid - now we find out how!
Especially for Asteroid Day, watch the full story so far of our Hera mission, on its way thru deep space to probe the first Solar System body transformed by human action: https://www.esa.int/ESA_Multimedia/Videos/2026/06/Humans_changed_an_asteroid._Now_we_find_out_how
I am working on Greece time for a few days, to call in to the last #HeraMission workshop before the spacecraft arrives at Didymos and sees what the #DARTMission has done: https://www.heramission.space/workshop-2026 .
Thanks go the organizers.
https://www.europesays.com/at/137350/ Asteroidenabwehr: Wie Wissenschaft und Technik uns schützen können #Asteroiden #AT #Austria #DARTMission #Kollisionsvermeidung #Österreich #Raumfahrt #Science #Science&Technology #Technik #Technologie #Technology #Wissenschaft #Wissenschaft&Technik
https://www.europesays.com/de/990976/ Asteroidenabwehr: Wie Wissenschaft und Technik uns schützen können #Asteroiden #DartMission #Deutschland #Germany #Kollisionsvermeidung #Raumfahrt #Science #Science&Technology #Technik #Technologie #Technology #Wissenschaft #Wissenschaft&Technik
Had fun giving a talk about Planetary Defense (in general) and #DARTMission (specifically) on the @[email protected] tonight! Thanks to the engaged and friendly SRO crowd! I ended up serving as @[email protected]'s warmup act. :)
Counterpoint: Never too much #DARTMission news.
🛰️🔭🧪
RE: https://bsky.app/profile/did:plc:6zp4cfbvk6cqi7vf6gzb7ayy/post/3mgpub42ihc2r
Erste menschengemachte Beeinflussung einer heliozentrischen Umlaufbahn. DART-Mission ändert solare Umlaufbahn eines Asteroidenpaares. #DARTMission #Asteroid #Rammtest #Asteroidenablenkung
https://www.scinexx.de/news/kosmos/dart-mission-solare-umlaufbahn-des-asteroidenpaares-geaendert/
NASA Observes Material Transfer Between Binary Asteroids
📰 Original title: NASA DART mission reveals asteroids throw “cosmic snowballs” at each other
🤖 IA: It's clickbait ⚠️
👥 Usuarios: It's clickbait ⚠️
View full AI summary: https://killbait.com/en/nasa-observes-material-transfer-between-binary-asteroids/?redirpost=b49d9b7d-caea-461d-a463-1000cecfd346
NASA’s DART Mission Did More Than Just Nudge an Asteroid, Study Says
In September 2022, NASA’s DART spacecraft rammed into the asteroid moonlet Dimorphos at nearly 15,000 miles per hour…
#NewsBeep #News #Space #Asteroids #dartmission #NASA #PlanetaryDefense #Science #UK #UnitedKingdom
https://www.newsbeep.com/uk/461500/
Big day for #DARTMission alums, as here’s some more work released today!
Remember how we said that yes, we were technically also changing Didymos’s orbit around the Sun, but by a small, unmeasurable amount?
So, it _was_ a very small amount but Rahil Makadia et al showed it was _not_ unmeasurable.
Asteroid defense mission shift...
Big day for #DARTMission alums, as here’s some more work released today!
Remember how we said that yes, we were technically also changing Didymos’s orbit around the Sun, but by a small, unmeasurable amount?
So, it _was_ a very small amount but Rahil Makadia et al showed it was _not_ unmeasurable.
Asteroid defense mission shift...
NASA’s DART Mission Did More Than Just Nudge an Asteroid, Study Says
In September 2022, NASA’s DART spacecraft rammed into the asteroid moonlet Dimorphos at nearly 15,000 miles per hour…
#NewsBeep #News #Space #asteroids #AU #Australia #DARTmission #NASA #PlanetaryDefense #Science
https://www.newsbeep.com/au/523376/
NASA’s DART Mission Did More Than Just Nudge an Asteroid, Study Says
In September 2022, NASA’s DART spacecraft rammed into the asteroid moonlet Dimorphos at nearly 15,000 miles per hour…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #asteroids #dartmission #NASA #planetarydefense #Science
https://www.newsbeep.com/us/508030/
https://www.europesays.com/uk/808660/ NASA’s DART Mission Did More Than Just Nudge an Asteroid, Study Says #Asteroids #DartMission #Nasa #PlanetaryDefense #Science #Space #UK #UnitedKingdom
https://www.europesays.com/at/29797/ Umlaufbahn um die Sonne verändert #Asteroid #AT #Austria #DART #DARTMission #Dimorphos #Österreich #Raumfahrt #Science #Science&Technology #Technik #Technology #Umlaufbahn #Wissenschaft #Wissenschaft&Technik
While we wait for the Hera mission to get out to Didymos & Dimorphos and show exactly what the #DARTMission impact did, there is new science on what was happening in the binary before then.
Sunshine et al. 2026, "Evidence of Recent Material Transport within a Binary Asteroid System" - https://iopscience.iop.org/article/10.3847/PSJ/ae3f27
While we've been thinking about YR4, people continue to use #DARTMission data to come up with amazing results! Congrats to Jessica Sunshine et al. for the linked paper (and linked press release explaining it)!
iopscience.iop.org/article/10.3...
New NASA DART Mission Data Rev...
While I am tempted to say this looks like a promo pic from an ultra-low-budget foreign-language dramatization of the #DARTMission and these are the off-brand versions of Nancy and me with an also off-brand scale model of the spacecraft, I am aware of no such tributes.
RE: https://bsky.app/profile/did:plc:xraomsuf6pvh7r2cqtdwhkvm/post/3mfhmrmtu5s2i
While I am tempted to say this looks like a promo pic from an ultra-low-budget foreign-language dramatization of the #DARTMission and these are the off-brand versions of Nancy and me with an also off-brand scale model of the spacecraft, I am aware of no such tributes.
RE: https://bsky.app/profile/did:plc:xraomsuf6pvh7r2cqtdwhkvm/post/3mfhmrmtu5s2i
NASA Says It Cannot Stop 15,000 Undetected Asteroids Coming Toward Earth
Asteroid Bennu ejecting particles. Credit: NASA / Wikimedia Commons / Public domain A hidden population of asteroids capable…
#NewsBeep #News #Space #15000near-Earthasteroids #CA #Canada #citykillers #DARTmission #NASA #Science #undetectedasteroids
https://www.newsbeep.com/ca/483809/
RE: https://squeet.me/display/962c3e10-158e8e14-c957b7b6fb1818db
We await the #HeraMission arriving at #Didymos and #Dimorphos to see exactly what the #DARTMission did.
Last week in the Planetary Science Journal:
Ďurech et al. 2025, "A Change of the Rotation Period of Asteroid (65803) Didymos Caused by the DART Impact" - https://iopscience.iop.org/article/10.3847/PSJ/ae29ec/meta .
Reshaping and debris from the impact onto Dimorphos changing the shape of Didymos just a little bit.
Relevant for both the #DARTMission and the #HeraMission .
New #DARTMission result in the Planetary Science Journal: "A Change of the Rotation Period of Asteroid (65803) Didymos Caused by the DART Impact" by Josef Ďurech, Petr Pravec, Masatoshi Hirabayashi, Derek C. Richardson, Harrison Agrusa and Ryota Nakano iopscience.iop.org/article/10.3...
Always happy to repost #DARTMission content, and happy to point to the Astrobites article discussing Tony Farnham's new paper therein!
RE: https://bsky.app/profile/did:plc:yiht2spe2sqm23m3iowdlhgz/post/3m5xf7qs7xs26
Kasper Zoellner reviews the #DARTMission and its deflection of the asteroid Dimorphos for Astrobites: https://aasnova.org/2025/11/03/shot-by-the-dart-and-were-to-blame-now-that-space-rock-wont-be-the-same/ .
With Bon Jovi references I had not expected.
Today on the arXiv:
Agrusa & Chatenet 2025, "Gravitational scattering of ejecta in the Didymos system cannot explain the evolution of the binary's orbital period" - https://arxiv.org/abs/2509.20197
More #DARTMission science in advance of the #HeraMission arriving.
Scientists weigh nuking asteroid that could slam into moon in 2032
Scientists are evaluating whether a nuclear strike could be the last line of defense against an asteroid that…
#NewsBeep #News #Science #Asteroid2024YR4 #asteroiddeflection #asteroidmoonimpact #AU #Australia #DARTmission #lunarejecta #NASAasteroiddefense #nuclearasteroidmission #PlanetaryDefense
https://www.newsbeep.com/au/166958/
The impact hazard session at #EPSCDPS2025 features overviews of the #DARTMission and the #HeraMission: https://meetingorganizer.copernicus.org/EPSC-DPS2025/session/55132 .
And also a reminder of the importance of avoiding causing an impact hazard when addressing the impact hazard.
Today in the Planetary Science Journal:
Lolachi et al. 2025, "Ejecta Mass Estimates from the DART Impact Plume Inferred from LICIACube Images" - https://iopscience.iop.org/article/10.3847/PSJ/adec6b
#DARTMission and #HeraMission science.
The #DARTMission and LICIACube made APOD again today:
Why in the News: Asteroids
More than just space debris, they’re relics of the early solar system, potential minefields, & planetary threats.
With DART & OSIRIS-REx, Earth enters the era of planetary defense.
GS3 + Prelims: Space tech, extinction events, deflection science, resource potential.
#EnliteIAS #Asteroids #UPSCPrep #GS3 #PlanetaryDefense #DARTMission #ScienceAndTech
Thread with a few selected #DARTMission animations from Farnham et al. "High-Speed Boulders and the Debris Field in DART Ejecta"
https://arxiv.org/abs/2506.16694
I have slowed down the animations to my liking, alt text is from the authors' descriptions. All original files available at
https://drum.lib.umd.edu/items/968963ed-ccee-4532-af5d-6e6e362d6d15/full
ZIP file: https://drum.lib.umd.edu/bitstreams/d2869cf0-cc90-458b-bdcf-945223ffe4c2/download
h/t @michael_w_busch
🧵 1/4
For those who have not read the entire paper:
Tony Farnham and company have tracked boulders in the #DARTMission ejecta, identifying clusters of boulders produced by the spacecraft's impact fragmenting specific blocks on Dimorphos' surface.
Woah.
Today on the #arXiv:
Farnham et al. 2025, "High-Speed Boulders and the Debris Field in DART Ejecta" - https://arxiv.org/abs/2506.16694
#DARTMission science with predictions for the #HeraMission.
And demonstrating how things can go sideways in a collision.
Today on the #arXiv :
López-Oquendo et al. 2025, "Thermal and Optical Characterization of Near-Earth Objects: Science Commissioning of the Recently Upgraded Mid-Infrared Camera MIRSI" - https://arxiv.org/abs/2506.13943
Including observations of Didymos before and after the #DARTMission impact.
Consistent with other observations of the ejecta (including from ALMA as detailed in Roth et al. 2023).
Today in the Planetary Science Journal:
Kolokolova et al. 2025, "Characterization of the DART Ejecta Using Computer Modeling of the Ground-based and HST Photopolarimetric Data" - https://iopscience.iop.org/article/10.3847/PSJ/adda47
Occultation data suggests that Dimorphos is considerably less dense than Didymos, or at least was before the #DARTMission impact.
Need more data; for which the #HeraMission is on the way.
Steve Chesley describes the heliocentric orbit change for Didymos from the #DARTMission impact, rather that the orbit change of Dimorphos about Didymos.
~12 microns/second, measured by occultation timing.
Lots of science from chasing shadows.
#PDC2025 resumes with @schmemela leading discussion of different asteroid deflection methods; including both the #DARTMission & other work on kinetic impact deflection and things like gravity tractor deflection.
The last panel title is a reference to "The Expanse".
But Andy Cheng, lead investigator for the #DARTMission to demonstrate asteroid deflection, also previously worked on the NEAR Shoemaker mission to Eros.
So Eros did in fact change everything where asteroid science is concerned.
Today on the #arXiv :
Langner et al. 2025, "Secondary impact debris in the Didymos system: what could be observed by Hera?" - https://arxiv.org/abs/2503.08158
Describing possibilities for the #HeraMission observing lingering debris from the #DARTMission impact hitting one of the asteroids.
Today on the #arXiv :
Richardson et al. 2025, "The Dynamical State of the Didymos System Before and After the DART Impact" - https://arxiv.org/abs/2502.14990
Reviewing the results of the #DARTMission impact.
"The largest uncertainty in the momentum transfer enhancement factor of the DART impact remains the mass of Dimorphos, which will be resolved by the #HeraMission ."
Today in the Planetary Science Journal:
Stickle et al. 2025, "Dimorphos's Material Properties and Estimates of Crater Size from the DART Impact" - https://iopscience.iop.org/article/10.3847/PSJ/ad944d
Estimating the crater diameter from the #DARTMission impact as 40-60 m and awaiting constraints by the #HeraMission .
As an aside:
This is why I wonder about the risk of the pending CNSA asteroid deflection demonstration shattering its target object.
@michael_w_busch 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...
Here's for example @65dBnoise 's stabilized version but running at half-speed. Original with ALT text at https://fosstodon.org/@65dBnoise/109073020138233000
Animation from the #DARTMission on final approach to run into the asteroid #Dimorphos in 2022 September.
Dimorphos is the smaller one.
For those unaware:
NASA and ESA have demonstrated kinetic impactor asteroid deflection, running a spacecraft into an asteroid, with the #DARTMission and the #HeraMission .
I would like to see a gravity tractor demonstration, using a spacecraft's gravity to pull an asteroid around, but it is slower.
Today in the Planetary Science Journal:
DeCoster et al. 2024, "Statistical Analysis of Near-surface Structure and Material Properties on Momentum Transfer in Rubble Pile Targets Impacted by Kinetic Impactors" - https://iopscience.iop.org/article/10.3847/PSJ/ad7cff
Today in the Planetary Science Journal:
Vincent et al. 2024, "Macroscale Roughness Reveals the Complex History of Asteroids Didymos and Dimorphos" - https://iopscience.iop.org/article/10.3847/PSJ/ad7a01 .
More #DARTMission science in advance of the #HeraMission arriving back at #Didymos .
Asteroiden-Sonde Hera ist gestartet. ESA-Raumsonde soll Folgen des DART-Rammversuchs vor Ort untersuchen. #HERA #ESA #DARTMission #Raumfahrt #Raumsonde #Asteroiden
https://www.scinexx.de/news/kosmos/asteroiden-sonde-hera-ist-gestartet/