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NASA's project to deflect asteroids

Trekker09

Captain
Captain
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" - !
psrock2.jpg
 
Quite interesting.
https://en.wikipedia.org/wiki/Double_Asteroid_Redirection_Test

Secondary spacecraft
LICIACube CubeSat a companion satellite of Dart Spacecraft
Infographic showing the effect of DART's impact on the orbit of Didymos B while deployment of italian LICIACube

The Italian Space Agency (ASI) will contribute a secondary spacecraft called LICIACube (Light Italian CubeSat for Imaging of Asteroids), a small 6-unit CubeSat that will piggyback with DART and will separate shortly before impact to acquire images of the impact and ejecta as it drifts past the asteroid.L
ICIACube will communicate directly with Earth, sending back images of the ejecta after the Dimorphos (Didymos B) flyby.

In a collaborating project, the European Space Agency is developing Hera, a spacecraft that will be launched to Didymos in 2024 [32] and arrive in 2027 — 5 years after DART's impact — to do a detailed reconnaissance and assessment.[32] Hera would carry two CubeSats, APEX and Juventas.
 
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
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Ready meteor gunners
https://www.space.com/asteroid-launcher-earth-impact-simulator
 
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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.
 
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
 
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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
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