#asteroiddeflection — Public Fediverse posts

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

#DART #AsteroidDeflection #AsteroidThreat

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

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

#AsteroidThreat #AsteroidDeflection

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

#AsteroidThreat #AsteroidDeflection #Astronomy

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

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

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

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

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."

https://www.bbc.co.uk/newsround/66755079

#Dimorphos #Asteroid #AsteroidDeflection

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

https://www.nature.com/articles/d41586-023-00601-4

#Asteroid #AsteroidDeflection