ScienceCasts: Bright Explosion on the Moon
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- Опубликовано: 15 май 2013
- Visit science.nasa.gov/ for breaking science news.
NASA researchers who monitor the Moon for meteoroid impacts have detected the brightest explosion in the history of their program. 
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If I can elaborate, for those interested: the light does not come from something burning, it comes from the extreme heating of the rock and the surface of the moon where it struck - there is so much kinetic energy that it heats it white-hot and vaporizes it, creating a huge cloud which then cools down and disappears very quickly.
Moon Base with freaking LaSeR BEAMS!
03:30 "Is it safe to moonwalk? The middle of March might be a good time to stay inside."
Now we only need some moon habitats that can resist meteors impacting at 56000 mph.
Chuck Norris called, he wants his golf ball back.
lol
shows how dangerous it would be to build a manned habitat on the moon surface - we take our atmosphere for granted as a shield
On a very modest scale, you could demonstrate this heating (conversion of kinetic energy into thermal energy) at home: if you have a hammer and a ball of lead or other soft material, hit the ball with the hammer a bunch of times and it warms up. When the hammer hits the ball, most of the kinetic energy (of the moving hammer) is converted into thermal energy (to heat the ball). In theory, you could keep doing this until the ball was glowing red-hot, white-hot, etc.
That's cool, glad they showed it. I expected it to be a bunch of photos and not show me the video.
Man I need to look up more
Great info and visuals!
De nada Alfredo cualquier duda pregunta mela...
Yes, absolutely.
Please put a video camera on ison
ScienceCast, can you please explain what kind of measurement "a small boulder" is? How does that translate to normal and big boulders? How many pepples go in one small boulder?
encyclopedia2.thefreedictionary.com/Boulder+(geology)
How would they know the speed of this specific meteor?
Do we have materials that can withstand 5 ton impact events to use for moon base building?
Why the low volume of the sound? At 720p I'd expect a loud and clear sound, crystal voice.
this is amazing.
Reminds of the episode in Cosmos where Carl Sagan tells a story about the people who saw a huge explosion on the moon!
Seeing this bright explosion in the moon through you tube is terrific even this fire stone donot leave the space also.
15,5 miles per second the speed of imact...
He did answer the question.
The narrator sounds soooo enthusiastic
Thanks man I had no idea such awesome thing existed! :D
Hey could you possibly tell me more about the comet and why they would test the missile on the moon also why would they need to blow up that comet? Plz reply
WoW, great stuff. Impacts on our Moon or the Earth are all the more interesting when associated with an annual meteor shower, as we believe that the meteoriods associated with comets are likely to be carbonaceous chondrite material. This carbonaceous chondrite material is exciting because it has been found to contain abiotic hydrocarbons including amino acids and in a recent discovery, an amino acid base pair!
There's a useful concept for space suits called a "mechanical counterpressure suit" or "space activity suit" (article on Wiki). Basically, you don't need the entire body in a bag of air; as long as there's mechanical pressure pushing on the skin there won't be swelling or pooling of fluids.
So the suit over most of the body could be, in theory, as thin as a thick elastic cloth. Cool idea but has some hurdles, such as how to get into something so tight, and it needs to be exactly custom-made.
sooooo the shadow effect of the earth screens out impact from in the general direction between Orbs but what explains the Old big easy visually craters ? How do strikes "catch up " to the moon from behind ? is it that the right side trades position Once to the other side of the marble called earth and is thus leading into the debris colliding with Dual planitary precession around the sun ?
I saw some stuff in the night sky last week! At first I figured it was a plane, then I saw 3 more lights following it-I freaked out and yelled to get someone inside the house come out and witness it too, but then it was gone. Wonder if its related?
Leonard: "Told you." (slams door)
Sheldon: (to himself) "What would Spock do in this situation?"
WHAT TIME?
Time zones?
Interesting that this is more than 10 times the speed with which the LCROSS program impacted the moon in 2009.
@Logan. It was published May 16...
Oh, hollow. That's exactly like your skull. That's comforting.
Just out of curiosity, is a "working hypothesis" different from what we used to call (in the olden days) a "hypothesis"?
Interesante las respuestas de los amigos, gracias totales.
At 0:40 it kinda looks theres a line going round the moon, as if it has been joint together by two half pieces.
The impact actually will generate "ripples", in the sense that it will generate seismic waves that will spread out from the impact site... although nowhere near large enough to detect from orbit I imagine.
It's not only about the explosion, genius!
Probably a future spacesuit design to increase agility. It isn't like their legs are exposed.
it's absolutely the friction of the impact. the impact speed was in the tens of thousands of miles per hour. most solids are vaporized at these energies.
this kind of news makes more sense to me now. thanks KerbalSP
The heat of the meteorite's very high speed
It happened 2 months ago and we only find out now?
adds a whole new meaning to going out for come chinese
Did anybody notice that this was posted a day before it happened?
Example?
I sure do.
When you hit nail with the hammer a few times it becomes hot. If you hit it strong enough it will glow from the temperature. That's because some of the kinetic energy of the impact changes into thermal energy. The rest of the energy goes into bouncing back the hammer of the anvil.
In the case of moon and asteroid it's the same, but the velocity was much, much bigger, hence the temperature created was much bigger and that's why it flashed.
Los felicito que gran tecnología tienen.
i think these fonts have been used in many occasions, not just that game.
The frequency of Earth-Moon system meteor encounters is such comforting information to know if you're in LEO. But if you're willing to do that kind of job, it's likely you're aware of those statistics ahead of time. (I suppose you could take comfort that it's likely to be over rather quick if the odds ever catch up and something does happen. The other good news is that space is big, and you're more likely to get hit by lightning while on Earth.)
here in Lousiana, it was "meteorite hits moon"
I love this channel!!
1:20 Metric size, metric weight, imperial speed, head explode.
That animated astronaut had a space wedgie.
She is clearly excited to be there.
There are different time zones... Some countries are hours ahead.
Energy is released as electromagnetic radiation (what light is). Most of the time heat is released as infra red (which is what heat sensing cameras see) but when enough energy is produced visible light is emitted, like when metal glows red hot. Fire is just one example of something that produces enough energy to be seen.
In first stage, the universal was one material.after it explode to cause of out air pressure and interior process of molecular. It divided several materials like planets, stars and satellites.
Infinity energy fee by this process. Who reflect from the surface of sun and reaching whole universal.
What does "the size of a small boulder" actually mean?
I didn't know Daria narrated ScienceAtNASA videos.
casual observation here ,, curious the impact location mapping kind of reveals a pattern of hit and miss documentation . Its curious that if you imagined a dotted line curving and surounding the observed areas you would kind of "stitch" a baseball on the surface observed . I know people are going to say the swing of momentum and standard fixation of earthside attitude contribute to this to a greater extent but then conversely the two biggest easily recognized mega craters face the earth
happened in March, posted in May
by heat, anything once it gets hot enough emits light. That is how lightbulbs work as well.
Man I love space
Wow! This is so amazing and crazy at the same time. I wish I could have seen it when it happen on that day. Oh well, good thing we have, "RUclips". (lol)
How would a test on a small beehive be visible from earth?
excellent
actually the video narration and the date listed in the video state that it happened on march 17th, not may 17th.
Same reason why there are a lot more craters on the far side of the Moon than on the near side. The near side of the Moon is shielded by a lot of impacts by the Earth.
Friction doesn't play as much a part in it as the conservation of energy does. That meteor was traveling at an extreme velocity. When it hits the moon that velocity can't just disappear, seeing as energy is invariably conserved, therefore the energy is just converted from kinetic energy into electromagnetic radiation and thermal energy.
Why do they meters and kilograms AND miles per hour? That is kind of unproffesional. Either use SI units or imerian units but dont mix them.
The video was uploaded MAY 16
wow..
So, there's such a thing as space weather.
The narrator sounds exactly like Dr. Carol Marcus narrating the Genesis video in Star Trek II.
Why aren't the impacts spread evenly across the surface?
where is the explosion ?!
Explosion still alot smaller than the tsar bomb. Does that mean we can see the tsar bomb super clear from space?
march 17th, watch it again
It actually is the force of the impact creating molten rock that flew in the air. Google this event to find articles on it
Caen mas objetos en la tierra, pero la mayoría no llegan a la superficie por que se desintegran en la atmósfera. Otros caen sobre el mar, y los impactos de los que caen en tierra firme y son lo suficientemente grandes para dejar un cráter son borrados por la erosión y por las plantas.
This happened in march and there just now telling us??
Nice data collection going on here. Over time the collected data along with water and mineral resources should help pick a good location for a long term settlement.
thank god i stayed at home that day
This narration feels like the opposite of vsauce. Michael!
As well as other portions of the moon
I know, thank you my friend :)
Why there was an explosion? moon doesn't have atmosphere so how the fire created?
So climatic
The "explosion" is at 0:47.
I download Google Sky Map the other day... And I gotta say that I like it very much.
It's a reasonable question, meteors harbor huge amounts of energy because of their speed. Basic physics tells us that energy never disappears but instead merely changes forms. In this case, the meteor has it energy stored as kinetic energy, upon impact the kinetic energy is immediately converted into other forms of energy, in this case mainly light and heat. The phenomena has been recreated in laboratories on a daily basis all over the world.
Wait this happend on the 17 .... But this was posted on the 16th .....
March 17th is when the meteoroid hit the moon.
why would it ripple and why wouldn't there be an explosion?
quick! where is magen fox??
Nevermind, it was posted may 16th, my mistake..
Okay, I have a question ... there is a picture of all the explosions that have happened over the last eight years ... why is there a strip down the middle of the moon that has had no explosions???
"Dont Drink and Drive" that even goes for Martians.