#DARTMission

Erste menschengemachte Beeinflussung einer heliozentrischen Umlaufbahn Premiere: Zum ersten Mal hat der Mensch die Bahn eines Himmelskörpers um die Sonne verändert. Denn die DART-Mission lenkte nicht nur den gerammten Asteroidenmond Dimorphos aus seiner Bahn, sie veränderte auch die Umlaufbahn des gesamten Asteroiden-Doppelsystems um die Sonne, wie neue Beobachtungen enthüllen. Dies bestätigt, dass solche Asteroiden-Abwehrmissionen funktionieren – selbst wenn nur ein Teil eines Doppelasteroiden gerammt wird. scinexx…

5 days ago

Counterpoint: Never too much #DARTMission news.

🛰️🔭🧪

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brightsblog

@brighty.bsky.social

6 days ago

Erste menschengemachte Beeinflussung einer heliozentrischen Umlaufbahn https://wp.me/p36Ae-1fWU Zum ersten Mal hat der Mensch die Bahn eines Himmelskörpers um die Sonne verändert. Denn die DART-Mission lenkte nicht nur den gerammten Asteroidenmond Dimorphos ... #DartMission

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KillBait News

@kill-bait.bsky.social

1 week ago

NASA Observes Material Transfer Between Binary Asteroids NASA's DART mission has provided the first direct visual evidence that asteroids in binary systems can exchange surface material. Using images captured before DART intentionally collided with Dimorphos, the moon of the asteroid Didymos, scientists observed faint fan-shaped streaks on Dimorphos' surface. These streaks indicate slow-moving debris, traveling at less than a walking pace, likely spun off from Didymos due to sunlight accelerating its rotation—a process known as the YORP effect. The debris created distinctive patterns on Dimorphos, demonstrating that near-Earth binary asteroids are more dynamic than previously believed. Researchers confirmed these findings by developing image-processing techniques to remove shadows and artifacts, running computer simulations, and conducting laboratory experiments with marbles and sand to replicate the fan-like streaks. The European Space Agency’s Hera mission, arriving at Didymos in December 2026, may provide further insight by observing whether these streaks survived the DART impact or if new patterns have formed. This research improves understanding of asteroid behavior, surface evolution, and may enhance planetary defense strategies for potentially hazardous asteroids.

NASA Observes Material Transfer Between Binary Asteroids

🤖 IA: It's clickbait ⚠️
👥 Usuarios: It's clickbait ⚠️

#asteroids #dartmission #binarysystems

View full AI summary:

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L'astéroïde dévié par la Nasa a changé d'orbite autour du Soleil Il y a quatre ans, la Nasa faisait s'écraser un vaisseau sur un petit astéroïde pour tenter de dévier sa trajectoire, une manoeuvre digne d'un roman de science-fiction qui visait à apprendre comment p...

1 week ago

La mission DART a vraiment bousculé l’espace : l’astéroïde percuté par la NASA a carrément changé d’orbite autour du Soleil.
www.boursorama.com/actualite-ec...
#Space #Science #Innovation #Astrophysics #PlanetaryDefense #DARTMission #Asteroid #SpaceNews

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@alcornews.mastodon.social.ap.brid.gy

1 week ago

Original post on mastodon.social

La mission DART a vraiment bousculé l’espace : l’astéroïde percuté par la NASA a carrément changé d’orbite autour du Soleil.
www.boursorama.com/actualite-economique/act...
#Space […]

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My Opinion

@oopsmyopinion.bsky.social

1 week ago

NASA’s DART Mission Changed Orbit of Asteroid Didymos Around Sun Discover how NASA’s DART mission moved beyond its initial goal, shifting the entire Didymos asteroid system’s orbit around the sun. Learn how this breakthrough proves humanity's ability to protect Earth through planetary defense.

www.jpl.nasa.gov/news/nasas-d...

#NASA #DARTMission #nearearthasteroid #science

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RichardJR

@electricbluesfan.bsky.social

1 week ago

1/8 🛰️ NASA’S ASTEROID CRASH ALTERED SOLAR ORBIT 🛰️

In 2022, DART slammed into Dimorphos to test planetary defense.

The impact changed the rock's path around the sun.

Source: Katrina Miller, NYT
#AstroSky #SpaceSky #NatSecSky #DartMission #PlanetaryDefense

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News Analysis

@newsanalysis.com

1 week ago

NASA’s DART Mission Did More Than Just Nudge an Asteroid, Study Says NASA's DART mission didn't just nudge Dimorphos, it slightly altered the asteroid pair's path around...

NASA's DART mission didn't just nudge Dimorphos, it slightly altered the asteroid pair's path around the Sun! A key step in planetary defense. Study in Science Advances. #DARTMission #News

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Asteroid defense mission shifted the orbit of more than its target The binary asteroid's orbit around the Sun was affected by the impact.

1 week ago

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.

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Evidence of Recent Material Transport within a Binary Asteroid System Evidence of Recent Material Transport within a Binary Asteroid System, Sunshine, J. M., Rizos, J. L., Barnouin, O. S., Daly, R. T., Ernst, C. M., Farnham, T. L., Agrusa, H. F., Wright, E., Wiggins, S. E., Bruck Syal, M., Stickle, A. M., Pearl, J. M., Raskin, C. D., Kumamoto, K. M.

1 week ago

While we wait for the Hera mission to get out to Didymos and show 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" iopscience.iop.org/article/10.3...

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UMD Science

@umdscience.bsky.social

1 week ago

New NASA DART Mission Data Reveals that Asteroids Throw ‘Cosmic Snowballs’ at Each Other | College of Computer, Mathematical, and Natural Sciences | University of Maryland Astronomers found evidence that rocks continuously travel between Didymos and its smaller moon Dimorphos, reshap

Astronomy's Jessica Sunshine and Tony Farnham discovered surprising asteroid behavior after analyzing NASA's #DARTMission data ☄️

The team found fan-shaped streaks on the asteroid moon Dimorphos' surface—the first visual evidence of rocks and dust naturally traveling between asteroids. 🔭

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New NASA DART Mission Data Reveals that Asteroids Throw ‘Cosmic Snowballs’ at Each Other | College of Computer, Mathematical, and Natural Sciences | University of Maryland Astronomers found evidence that rocks continuously travel between Didymos and its smaller moon Dimorphos, reshap

1 week ago

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...

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@latestnewsofficial.bsky.social

3 weeks ago

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.

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Daily Trend Mirror

3 weeks ago

City-Killer Asteroids Missing From NASA Radar Raise Planetary Defence Concerns NASA warns that thousands of “city-killer” asteroids remain undetected, with only 40% of large near-Earth objects tracked. Experts call for stronger planetary defence systems.

Earth At Risk? Thousands Of ‘City-Killer’ Asteroids Still Missing From NASA's Detection Radar
#AsteroidAlert #NASANews #PlanetaryDefense #NearEarthObjects #CityKillerAsteroids #SpaceScience #DARTMission #SpaceThreat #EarthSafety #AstronomyNews
dailytrendmirror.com/science-tech...

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2 months ago

We await the #HeraMission arriving at #Didymos and #Dimorphos to see exactly what the #DARTMission did.

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2 months ago

Abstract: On 2022 September 26, the NASA Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the secondary component of the binary asteroid (65803) Didymos. This experiment tested the kinetic impactor technology for diverting dangerous asteroids. Due to the impact, the binary system's angular momentum has changed, resulting in a significant change in the orbital period of Dimorphos. Precise values of the pre- and postimpact orbital periods were derived from a large set of photometric light curves measured for the Didymos-Dimorphos system during six apparitions from 2003 to 2023. We used these data to detect a possible change in the rotation period of the primary as a consequence of the impact. We analyzed the binary system's light curves using the binary asteroid light-curve decomposition method. We selected parts of the light curves covering orbital phases outside mutual events, which represent the primary rotational light curves. We applied the light-curve inversion method to construct a convex shape model of Didymos and determine its rotation period before and after the impact. These two periods were treated as independent free parameters of the modeling. We found a value of 2.260 389 1 ≤ 0.000 000 2 hr for the preimpact period and 2.260 440 ÷ 0.000 008 hr for the postimpact period. Their difference 0.18 ÷ 0.03 s is small yet significant, indicating that the rotation of Didymos became slower after the DART impact. The most plausible physical explanation is Didymos's postimpact reshaping, making its shape more oblate.

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...

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UMD Science

@umdscience.bsky.social

2 months ago

Image that shows ejecta around the impacted near-Earth asteroids as part of the DART mission, overlaid with text that reads: "2. Massive Boulders Ejected During DART Mission Complicate Future Asteroid Deflection Efforts"

#UMD astronomers discovered that a blast of space rocks ejected during the #DARTMission carried 3X more momentum than the spacecraft itself.

Coming in at #2 on our top stories list, this discovery led to insights for future planetary defense missions ➡️ go.umd.edu/topstories2025 🔭

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@wilchard11022.bsky.social

3 months ago

Always happy to repost #DARTMission content, and happy to point to the Astrobites article discussing Tony Farnham's new paper therein!

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Robert B.

5 months ago

Rock ‘n’ Roll: How NASA’s DART Turned an Asteroid Into a Rocky DJ — And the Orbit Just Kept on Dancing

READ MORE HERE: dammedifyoudont.blogspot.com/2025/10/nasa...

#DARTMission #Dimorphos #Didymos #NASA #PlanetaryDefense #AsteroidScience #MitigationMystery #RockyDisco #EjectaDebate #SpinAndSlide

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Gravitational scattering of ejecta in the Didymos system cannot explain the evolution of the binary's orbital period In the first few months following the DART impact on Dimorphos, it appears that the orbital period dropped by ${\sim} 30$ s in addition to the immediate ${\sim}30 $ min drop. This effect has been attr...

5 months ago

Today on the arXiv:

@harrisonagrusa.bsky.social & Camille Chatenet 2025, "Gravitational scattering of ejecta in the Didymos system cannot explain the evolution of the binary's orbital period" - arxiv.org/abs/2509.20197

More #DARTMission science in advance of the #HeraMission arriving.

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6 months ago

Session MITM18

The impact hazard session at #EPSCDPS2025 features overviews of the #DARTMission and the #HeraMission: meetingorganizer.copernicus.org/EPSC-DPS2025... .

And also a reminder of the importance of avoiding causing an impact hazard when addressing the impact hazard.

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6 months ago

Today in the Planetary Science Journal:

Lolachi et al. 2025, "Ejecta Mass Estimates from the DART Impact Plume Inferred from LICIACube Images" - iopscience.iop.org/article/10.3...

#DARTMission and #HeraMission science.

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Une sonde de la NASA a semé des débris imprévus, compliquant la défense face aux astéroïdes. Quelles conséquences ? En déviant l’orbite d’un astéroïde, la sonde DART a projeté des roches sur des trajectoires inattendues, à évaluer pour les futures missions.

7 months ago

Des rochers éjectés par DART auraient donné trois fois plus d’élan à l’astéroïde Dimorphos que l’impact lui-même ?
www.tameteo.com/actualites/a...
#Space #Science #Astrophysics #DARTMission #PlanetaryDefense #UnexpectedDebris

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@alcornews.mastodon.social.ap.brid.gy

7 months ago

Original post on mastodon.social

Des rochers éjectés par DART auraient donné trois fois plus d’élan à l’astéroïde Dimorphos que l’impact lui-même ?
www.tameteo.com/actualites/astronomie/un...
#Space #Science […]

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☄️ Les scientifiques ne comprennent pas la trajectoire des fragments de l'astéroïde Dimorphos Il y a trois ans, une mission spatiale a marqué l'histoire en modifiant la trajectoire d'un astéroïde. Cette...

7 months ago

Les fragments de Dimorphos partent dans tous les sens. Leur trajectoire contredit les prédictions du crash DART.
www.techno-science.net/actualite/sc...
#Space #Science #Astrophysics #DARTMission #Dimorphos #DebrisDynamics #Hera2026

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@alcornews.mastodon.social.ap.brid.gy

7 months ago

Original post on mastodon.social

Les fragments de Dimorphos partent dans tous les sens. Leur trajectoire contredit les prédictions du crash DART.
www.techno-science.net/actualite/scientifiques-...
#Space #Science #Astrophysics #DARTMission #Dimorphos […]

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APOD: 2025 July 28 – Collision at Asteroid Dimorphos A different astronomy and space science related image is featured each day, along with a brief explanation.

7 months ago

The #DARTMission and LICIACube made APOD again today:

apod.nasa.gov/apod/ap25072...

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