In an interview on Oct. 19, NASA administrator Bill Nelson said that project DART (Double Asteroid Redirection Test) will orchestrate collisions between a space probe and an asteroid. “Way out there, we’re going to intercept this asteroid and DART is going to hit it at 15,000 miles an hour --we’re going to see if we can, ever so slightly, move its trajectory….If we discover in the next century that an asteroid is inbound – an asteroid that would blow up the earth or change it, like the asteroid that wiped out the dinosaurs--DART is the way of avoiding that catastrophe,” Nelson said. Also liked his comment about Trek -“If you think back to the original Star Trek, that was a very diverse crew…..That was role-modeling way back even before Apollo. Now we’re bringing all that into reality with the Artemis generation,” added Nelson, alluding to NASA’s initiative to put the first woman on the moon, along with the next man, by 2024. So finally we're getting the obelisk in "The Paradise Syndrome" - !
More on the subject https://www.space.com/slice-and-dice-astroids-with-pi The paper https://www.deepspace.ucsb.edu/wp-content/uploads/2021/10/PI-Terminal-Planetary-Defense.pdf Dr. Ketema has a type of gravity tractor system using “restricted Keplerian motion.” Arecibo’s legacy https://www.universetoday.com/15951...th-all-the-data-are-available-in-a-new-paper/ flyby https://www.space.com/watch-asteroid-2023bu-make-close-earth-flyby I can’t stand it https://nasawatch.com/policy/yawn-nasa-has-a-planetary-defense-action-plan/ More https://www.whitehouse.gov/wp-conte...arth-Object-Hazards-and-Planetary-Defense.pdf
DART coming up fast https://www.spacedaily.com/m/report...oid_in_key_test_of_planetary_defense_999.html and the follow on https://www.spacedaily.com/m/report..._Europes_Hera_will_probe_crime_scene_999.html I dare cyclone Ian (or Barbara) to mess that up. The result a 32 min change https://gizmodo.com/how-we-know-dart-moved-the-asteroid-nasa-1849658591 Ready meteor gunners https://www.space.com/asteroid-launcher-earth-impact-simulator
Very detailed footage of the asteroid. I'm amazed they were be able to capture such detail at the speed it was going. Go to Google and search for "dart mission". You won't be disappointed.
More footage https://www.esa.int/Science_Explora..._Hubble_capture_detailed_views_of_DART_impact A big advance https://www.nextbigfuture.com/2023/...ding-asteroids-and-tracking-space-debris.html
The first https://www.jpl.nasa.gov/videos/deep-impact-were-going-in We saw the creation of rays, as on the Moon, from the looks of it. If roles were reversed: https://www.space.com/dart-asteroid-impact-dimorphos-no-danger-to-earth Dust trail https://forum.nasaspaceflight.com/index.php?action=dlattach;topic=47874.0;attach=2130813;image HAARP’s role and more… https://thedebrief.org/haarp-facili...space-object-to-help-boost-planetary-defense/ https://www.cnet.com/science/space/nasa-is-pumped-about-2023-here-are-all-the-reasons-why/ How to push through grainy matter https://techxplore.com/news/2023-01-method-quickly-soft-granular-materials.html
Amateur! just orbit a few big ass tungsten rods and drop those on targets, clean, easy, cheap (in comparison) you'd be an awful bad guy! Pay attention next time in villain class will ya!? https://en.wikipedia.org/wiki/Kinetic_bombardment
It would take a long time to get an asteroid right where you want it. Now, this mission seems to have over performed. A theory on that: The rubble-pile acted a bit like a non-newtonian...the initial pulse which made the rest of the mass into something like a jamming-gripper--came back to the impact disturbed area...and the entry and exit wound were the same. Maybe call this contrecoup jetting in that---just perhaps---this event was more like a concussion than anything else...thoughts? It would explain the long tail and the rocket effect. Of more concern https://www.space.com/phaethon-asteroid-spin-speeding-up Beamed energy—lovely image https://phys.org/news/2022-12-explores-topological.html mining https://www.space.com/space-mining-grinding-into-reality
Here is a strange: https://www.secretprojects.co.uk/th...tary-science-thread.36194/page-15#post-563693 The Osiris Rex mission craft “felt” ZERO resistance upon contact. So DART’s speed made all the difference and proof these things are non-Newtonian? As in DUNE…the slow blade enters. Where to hit, though? https://phys.org/news/2022-11-impact-asteroid-effectively-deflect-orbit.amp —you hit off center
Initial results in—about 1,000 metric tons blasted out: https://www.universetoday.com/15931...ve-on-dimorphos-the-science-results-are-here/ A recent hit here: https://phys.org/news/2023-04-asteroid-earth-hours-meteor-beautiful.html The new plan https://phys.org/news/2023-04-nasa-earth-asteroids-comets.html More: https://www.thespacereview.com/article/4586/1
High melting point. Used in rockets—and early light-bulbs for that reason. On the Periodic Table it is “ W” for Wolfram…also the name of a rich dabbler who wrote about a “new kind of science” or something.
Thanks! Knew it'd been used in light bulbs but not why. It's amusing to read it's all for the same reason. From "light bulb" to "orbital bombardment" is not the most intuitive leap.
You can also use stuff like Inconel alloys and other super alloys, maybe ceramics might do the trick as well, tungsten carbide should be really good for that I think, however, all these options would be more expensive..
Carbides are the future: https://phys.org/news/2016-12-world-resistant-material.amp This carbide could stir molten steel https://phys.org/news/2022-10-heat-proof-chaotic-carbides-revolutionize-aerospace.amp I am actually more intrigued by a metal that gets tougher as it gets colder: https://phys.org/news/2022-12-toughest-material-earth.amp https://phys.org/news/2022-12-quasicrystal-accidental-electrical-discharge.html Or this for a pellet sail https://phys.org/news/2022-12-team-protein-based-material-supersonic-impacts.html https://www.nextbigfuture.com/2022/12/wind-pellet-shear-sailing.html More on DART https://www.universetoday.com/160346/remember-the-dart-impact-hubble-made-a-movie-of-the-debris/ https://phys.org/news/2023-03-results-nasa-dart-planetary-defense.html https://behindtheblack.com/behind-t...results-from-the-impact-of-dimorphos-by-dart/ On asteroid defense: https://www.universetoday.com/159386/should-planetary-defence-take-center-stage/ This is where space solar power can come it…sunshade/solar-tug/power plant…and asteroid defector? Pad maker? Beam-pusher? https://www.deepspace.ucsb.edu/projects/directed-energy-planetary-defense https://www.universetoday.com/15942...moon-just-blast-the-regolith-with-microwaves/ https://arc.aiaa.org/doi/10.2514/3.25754 https://www.nextbigfuture.com/2022/...sma-magnetic-sail-to-get-near-lightspeed.html All aerosols do is make acid rain—and if we get a massive spate of volcanism after using REAL chemtrails for cooling? We get an ice age for sure….and it will be a long time before it precipitates out. Now we need to make it rain on space spending—before space makes it rain iron and ice on us. Sadly…we have dirtbags like this trying to kill NASA’s budget: https://nasawatch.com/budget/lets-cut-all-that-woke-nasa-science-stuff/ Post-op
"NASA asteroid impact mission triggers a surprise avalanche of space boulders." https://www.sciencealert.com/nasa-a...triggers-surprise-avalanche-of-space-boulders