The mystery of crater rays may finally be coming to a close

Astronomy ^ | 2 Aug, 2018 | Michelle Hampson

[MtnClimber]

Material ejects from the valleys in an uneven surface as the meteorite is striking the surface.

[blueunicorn6]

Now I can sleep at night.

[BenLurkin]

A big splash...and a shallow crater...

[Red Badger]

Ping!...............

[treetopsandroofs]

Rats. I thought they finally found Judge Crater.

[Red Badger]

Glad to see HS students interested in real SCIENCE................

[Hieronymus]

I’m mostly flabbergasted that the “real” scientists were not able to figure this out. Any kid who has spent a fair bit of time working with sand, water, and gravel at the beach should be able to figure this out, unless they have undergone extensive “training” so as to forget the lessons of childhood.

[JohnG45]

I’m mostly flabbergasted that the “real” scientists were not able to figure this out.

My exact reaction to reading this article.

[Hebrews 11:6]

It's hard for me to fathom the, for want of a better term, rank stupidity and incompetence of scientists failing to consider such a basic variable as the surface being impacted. But they're human just like everyone else--a reminder for the next time "scientists" and "experts" get too big for their britches.

[Red Badger]

The first step in learning is to admit you know nothing..............

[Cold Heart]

My thoughts exactly. Scientist should stick to things they are better at manipulating like AGW.

[onedoug]

Good for these kids. ‘Hope they get some of the journal publication credit.

[jmacusa]

Tycho. A ten mile wide crater. Whatever made it split into three large chunks. I was looking at the moon with my scope last night. But couldn't really see Tycho as it was a half moon. Mars was a treat though.

[Diplomat]

The moon is a hollow metal sphere. All large impacts only go to a uniform depth and are convex,

[Patriot777]

Can I have $150,000.00 a year to drop balls into pans of beads or sand? I’d like one of those nifty labcoats and free pizza and soda too.

[SunkenCiv]

Thanks Red Badger. Gene Shoemaker used to use a firearm, "my favorite rifle" as he called it, because his entire class would be able to experiment with the creation of miniature crater creation, and note for themselves that the bullet wasn't left in the crater, it just disintegrated. The National Geographic "Asteroids, Deadly Impact" has a demonstration of this, with one of his former students.

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[SunkenCiv]

From the lunarorigin keyword, out of the FRchives:

• Earth's days used to be just 18 hours long, but the Moon changed that [2018]
• The Moon WASN'T formed with one giant impact but had a bombardment birth after 20 moonlets hit... [2018]
• The moon formed inside a hot cosmic doughnut, scientists say [2018]
• Asteroids 'dumped water into molten Moon' [2016]
• NASA Research Provides New Details On Mystery of How the Moon Got 'Inked' [2016]
• Ancient lunar polar ice reveals tilting of Moon's axis [2016]
• Water Hidden in the Moon May Have Proto-Earth Origin [2013]
• Solar System Ice: Source of Earth's Water [2012]
• Moon's interior water casts doubt on formation theory [2011]
• Moon has liquid core just like Earth...reveal sensors left on surface by astronauts 40 YEARS ago [2011]
• One of the newest craters on the Moon [2010]
• Far side of the moon 'could have been visible from earth' [2009]
• Were Mercury and Mars separated at birth? [2009]
• Ancient impact may have bowled the Moon over [2007]
• Landscapes from the ancient and eroded lunar far side [2006]
• An explosion on the Moon [2005]
• Comet or Meteorite Impact Events in 1178AD? [2005]
• A Celestial Collision [2004]
• Long-Destroyed Fifth Planet May Have Caused Lunar Cataclysm, Researchers Say [2002]

[Deaf Smith]

*Dropping balls into a container of sand...

Up the speed which would still be marginal to a space object impact:

Fire a 150 gr 300 Win Mag into sandstone and study that.

Wear safety glasses.

[MtnClimber]

Right. And if you shoot steel plates you will see the rats on the steel too. You have to have enough velocity to get the splash effect.