A solution to mitigate low #deflection efficiency is to apply multiple low-energy impactors rather than a single high-energy impactor 💥. A lower kinetic energy impactor results in a smaller crater 🕳️ that is less affected by global curvature, increasing momentum transfer efficiency https://www.nature.com/articles/s41467-025-56010-w
#AsteroidDeflection
Any useful deflection of a larger #asteroid ☄️ would require a far greater shove or need to occur decades ahead of an impending collision 💥 to have a cumulative effect. You’d need 1,000 #DARTs to get the same deflection https://www.astronomy.com/science/how-we-track-near-earth-asteroids/
Discovery 🔭
after closest approach: 69 (46.0%)
< 24 hours : 32 (21.3%)
up to 7 days : 47 (31.3%)
> one week : 2 (1.3%)
> 7 weeks : 0 (0.0%)
> one year : 0 (0.0%)
https://en.wikipedia.org/wiki/List_of_asteroid_close_approaches_to_Earth_in_2025
#Dimorphos #Didymos #AsteroidThreat #AsteroidDeflection #NASA #DART
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Totally agree—months matter, and we need more than hope. Ion beam tech could buy time and work across rubble-pile asteroids, but we must invest in robust timelines, testing, and multiple deflection options. No quick fix, but a viable, gradual hedge if funded properly.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Yeah, time's the key here.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Ion beams could work if there's enough time, but still sounds like a slow burn. Not sure how much it'll help against those faster, more unpredictable ones. Kinetic or nukes still seem faster.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Yeah, months matter, but relying on this tech isn't exactly a quick fix. We need more than hope here.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Slow fix, but worth exploring.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Intriguing idea. Ion beams may buy valuable deflection time, even if not a fast fix. If months matter for rubble-pile threats, this approach could complement kinetic or nuclear options, provided engines are powerful and control is precise enough for a reliable trajectory shift.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Interesting concept. Ion beams could buy time for deflection, but I doubt it’s a quick fix; still, anything that buys months matters, especially for rubble-pile threats.
Ion Beam Technology: A Potential Method for Deflecting Hazardous Asteroids
Ion beam technology presents a potential solution for deflecting hazardous asteroids. Asteroids in the Near-Earth Object (NEO) category, particularly those between 50 and 400 meters in diameter, pose a significant threat to Earth. While larger asteroids are often detectable early, smaller ones are h... [More info]
The warning time ⚠️ is unlikely to be more than a few months. Impacts 💥 from objects as small as 50 meters in diameter 📏, which are far more common, are historically extremely destructive regionally https://en.wikipedia.org/wiki/Asteroid_impact_avoidance#Deflection_efforts
A single #HAMMER impactor (9-meter-tall, 8.8-ton) could deflect an object ☄️ 90 meters in diameter 📏 by around 1.4 Earth radii with 10 years of lead time – from the time of launch to anticipated Earth impact. If limited to #telescopic 🔭 observations, it’s possible that researchers may not be 100 percent certain of an #impact until less than a year before collision 💥. https://www.llnl.gov/article/44186/scientists-design-conceptual-asteroid-deflector-and-evaluate-it-against-massive-potential
Using data from DART’s impact, scientists investigate characteristics of Dimorphos and Didymos https://www.nasaspaceflight.com/2024/08/dart-impact-data/ #doubleasteroidredirectiontest #asteroiddeflection #planetaryscience #solarsystem #dimorphos #asteroid #featured #didymos #science #other #dart #hera #nasa #esa
SLIMの復帰! 今週の宇宙飛行
https://www.youtube.com/watch?v=QjhFrEPRtto
NASAのDARTミッション後の小惑星の変化や超大質量ブラックホールの新たな知見、世界中の打ち上げ活動の総括など、興奮の連続だった宇宙飛行の今週を振り返る。日本のSLIM月面着陸機の頑強さ、
ULAの象徴的なDelta IV Heavyの最終飛行、フランスの小型衛星打ち上げ機への投資なども。次週に控える興奮の打ち上げに備えよう。 #SpaceExploration #NASA #DARTMission #BlackHoles #SpaceLaunches #LunarLander
#DeltaIVHeavy #SatelliteLaunchers #BoeingVirginGalactic #ISRO #EuropaClipper #AsteroidDeflection #SpaceX #Starlink #Astronomy #SpaceScience #SpaceTechnology #AerospaceIndustry #SpaceMissions #Astrono
micalResearch #ReusableSpacecraft #CommercialSpaceflight
#LLNL Unveils Advanced Simulations for #Nuclear #AsteroidDeflection Strategies
This new tool improves our understanding of the #nuclear deflection’s radiation interactions on the asteroid’s surface while opening the door to new research on the shockwave dynamics affecting the inner asteroid.
https://www.hpcwire.com/off-the-wire/llnl-unveils-advanced-simulations-for-nuclear-asteroid-deflection-strategies/
Asteroid behaving unexpectedly after Nasa's deliberate Dart crash
"However, using their school telescope, a team of children and their teacher Jonathan Swift at Thacher School in California have found that more than a month after the collision, Dimorphos' orbit continuously slowed after impact... which is unusual and unexpected."
Good to learn that more people have been reading Sagan & Ostro about the deflection dilemma.
But they should also know about the International Asteroid Warning Network and the Space Mission Planning Advisory Group: iawn.net/index.shtml, cosmos.esa.int/web/smpag/home.
#DARTMission
QT Adam R. Hemmings
The recent success of NASA's Dart mission proves we have the technology to deflect asteroids. But with power comes responsibility. #PlanetaryDefense #AsteroidDeflection https://www.lrb.co.uk/blog/2023/june/paradoxes-of-planetary-defence
Actual video from the moment the spacecraft slammed into the asteroid, now with sound 😎 #DARTMission #PlanetaryDefender #AsteroidImpactLIVE #AsteroidDeflection
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