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ScienceAtNASA
ScienceAtNASA
ScienceAtNASA
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The Science Mission Directorate (SMD) engages the Nations science community, sponsors scientific research, and develops and deploys satellites and probes in collaboration with NASAs partners around the world to answer fundamental questions requiring the view from and into space. SMD seeks to understand the origins, evolution, and destiny of the universe and to understand the nature of the strange phenomena that shape it.
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Год назад
Комментарии
@daringravitt3826
@daringravitt3826 8 месяцев назад
I am going to call BS on all this explanation. A black hole is not so complicated and all you have to do is think of a "black hole" like the eye of a hurricane. The concept is closely related. Makes me sick to see these so called experts making money and a fake name for themselves off of this nonsense. Yes, this is based on years of saying and writing the same thing over and over again by many "experts" since einstein, which was on to something but not in the direction many others took it after him.
@tjingwen
@tjingwen 9 месяцев назад
❤❤❤❤❤❤❤❤
@swatidombale3414
@swatidombale3414 2 года назад
White hole is exist
@Hehe-wy7vw
@Hehe-wy7vw 2 года назад
Whoa I am into his shirt!!
@caleblacy3012
@caleblacy3012 2 года назад
You have pictures of what went into your massive black hole? Put it on PH
@talenttyphoon7809
@talenttyphoon7809 2 года назад
Why don't earth get sucked into a black hole
@minecraftm3710
@minecraftm3710 3 года назад
@Aurélie Shp Saw your question in the live chat replay. (Can we see behind a black hole ? If yes, how ?") Please correct me if I'm wrong-but I'm pretty sure it's not a "flat" object, more of a sphere. Essentially, I don't know what you mean by behind, but there's space all around the black hole.
@minecraftm3710
@minecraftm3710 3 года назад
Want to become and astrophysicist someday--Black holes are really interesting!
@you2tooyou2too
@you2tooyou2too 3 года назад
Doesn't time stand still at (or near) the SR? Doesn't that mean that nothing at the current SR has had 'normal time' to fall any closer to the center of the BH. But everything that gets that close adds to the gravity well(field) of the BH, increasing the SR out past the stuff that (in our observational normal space-time) is stuck between previous and currently accumulating layers. I assume that like the net microgravity at the center of the Earth, or uniform microgravity everywhere inside a Dyson sphere, the gravity field would be flat, not curved (as it is outside any solid object). So with matter stuck near the SR, the gravity inside the current SR would be negative, perhaps 'un-building' the original matter of the first 10 solar masses that initiated the BH. However, I don't know if the time dilation is related to the curvature of gravity or its magnitude.
@sunetrajana7765
@sunetrajana7765 3 года назад
Amazing video..
@Pejuangdadangaming
@Pejuangdadangaming 3 года назад
Pembahasan tentang black hole 101 bagaimana dengan black hole ton618
@dragon2k115
@dragon2k115 3 года назад
this was my homework hated it but nice video
@sbkarajan
@sbkarajan 3 года назад
Isn't the mass of the sun or whatever star compressed into zero volume that is called singularity? And then the region around it, or up to the boundary called event horizon is called black hole? What the heck are these "experts" talking about sun compressed into a ball or "tiny tiny" space? Singularity has ZERO VOLUME people!
@you2tooyou2too
@you2tooyou2too 3 года назад
I think they mean that the outside of the marble is the event horizon (EH or SR) or that if the Earth were compressed to that size, the EH would form, and try to collapse the Earth into a singularity, but I suspect this falls apart, since time would be frozen (relative to normal space), so the formation of a singularity would take forever (in our normal space-time). Of course there is no natural process that would compress the Earth that way.
@sbkarajan
@sbkarajan 3 года назад
@@you2tooyou2too The Sun's density is 1.4 g/cc, heavier than the liquid water. It emits blackbody radiation, plasma doesn't do that. And the core is super dense, denser than any solid, and pressure and temperature exceeds those of the hydrogen bomb. It should have instantly fused most of the hydrogen in the core into helium as soon as it reached such state. The sun is not a plasma ball. 100% sure of it now.
@millie7239
@millie7239 3 года назад
Nasa pls look in the andromeda galaxy
@millie7239
@millie7239 3 года назад
Plus I have a question
@you2tooyou2too
@you2tooyou2too 3 года назад
Many people have. What are you referring to in Andromeda that they don't already know about?
@pampibarman9534
@pampibarman9534 3 года назад
all the theory of the great scientist Stephen Hawking should be accepted and plz stop this robots experiment.
@Love_Nature07
@Love_Nature07 3 года назад
Is there any black hole in our galaxy If yes, what is it's name ?? #askNASA
@you2tooyou2too
@you2tooyou2too 3 года назад
No answer from NASA, but yes. There is, at least, some expected effects that reach out past the obscuring galactic dust cloud, but some folk are trying to use longer frequencies to cut thru some of it to make more direct measurements of our central super-massive BH. I don't know that anyone has named it specifically other than 'our central BH',
@Love_Nature07
@Love_Nature07 3 года назад
@@you2tooyou2too ohk thanks for thre information
@paulrice7224
@paulrice7224 3 года назад
Perhaps a black hole is a mass(decayed nuclear material?) so dense, that there's no room for the electron fields to fluctuate, and thus, no emission of photons/emr occurs?
@paulrice7224
@paulrice7224 3 года назад
(Hmmm... Is everything with an electron(the quantum of the "electronic field") electronic? lol)
@paulrice7224
@paulrice7224 3 года назад
Hmmm... Maybe black holes are electron free? lol
@paulrice7224
@paulrice7224 3 года назад
(Maybe we should call "black holes", "dark stars"?)
@you2tooyou2too
@you2tooyou2too 3 года назад
@@paulrice7224 Neutron stars are also dark, but no SR means they can reflect light, and probably do radiate heat.
@paulrice7224
@paulrice7224 3 года назад
Perhaps a black hole is just a star, with reverse polarity?! : )
@paulrice7224
@paulrice7224 3 года назад
A different polarity, maybe?
@paulrice7224
@paulrice7224 3 года назад
Perhaps a black hole is a mass(decayed nuclear material?) so dense, that there's no room for the electron fields to fluctuate, and thus, no emission of photons/emr occurs?
@you2tooyou2too
@you2tooyou2too 3 года назад
What would reverse polarity mean, or do for the nature of a BH? Electrons are only one mechanism for radiation.
@rasikanavodani7128
@rasikanavodani7128 3 года назад
oww nasa
@amitnavale9035
@amitnavale9035 3 года назад
I think Black Holes are the essential for maintaining the galaxy fabrics. They hold it together Because of gravity they have they make sure gaseous mass matters etc to come together. Then they fuse together. Generate heat then it becomes a planet or star. I think dark matter has some amount of gravity. Which over billions of years that matter come together. Creat a massive gravitational pool. Then they became black hole.
@you2tooyou2too
@you2tooyou2too 3 года назад
Handy notion, but does not seem to fit our current understanding of a BH or even "Dark Matter".
@arte1462
@arte1462 3 года назад
Can anyone pass through the black hole
@you2tooyou2too
@you2tooyou2too 3 года назад
Note the comments on spaghettification, and then the basic principle that nothing can escape from a BH, to complete the process of 'Passing Through'.
@arte1462
@arte1462 3 года назад
Can anyone pass through the black hole
@arte1462
@arte1462 3 года назад
if the stars were to become the black holes then why do they show such feature.
@you2tooyou2too
@you2tooyou2too 3 года назад
What feature? Typically, a BH forms only at the end-of-luminous-life of a star greater than 10 solar masses & some other criteria.
@arte1462
@arte1462 3 года назад
if the stars were to become the black holes then why do they show such feature.
@scienceilan
@scienceilan 3 года назад
but block hole absorption only neither stars nor clusters
@loren-emmerich
@loren-emmerich 3 года назад
Waking up and realizing you miss time, that's nothing.
@liteofislam7830
@liteofislam7830 3 года назад
say something about islam,,,
@satheeshsathee8063
@satheeshsathee8063 3 года назад
Which one is the big. How big?
@TWOCOWS1
@TWOCOWS1 3 года назад
glad nasa is allow the clearly gay guys doing the intro. it is nice to see the old taboos broken and prejudices shoved aside.
@UTLfiles
@UTLfiles 3 года назад
If there is a off chance you need a space dummy. Can I sign a waver for science? #asknasa #real-question
@zhuolinpan6259
@zhuolinpan6259 3 года назад
Probably the Sun can’t be a Black hole, Cos the the sun Is to small.
@shraddhashaileshkher8231
@shraddhashaileshkher8231 3 года назад
This is amazing!!!!!!
@dazobee1310
@dazobee1310 4 года назад
Can u guys at NASA make an animation showing us what it would look like to have the sun supernova at what would it look like to us and what would happen to us explained in steps?
@you2tooyou2too
@you2tooyou2too 3 года назад
I have seen others: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-e-P5IFTqB98.html is pretty good.
@dazobee1310
@dazobee1310 4 года назад
If the sun is compressed into a black hole would we be sucked in or would there just be more or less gravity and life would live on? And if we lived on would we die from no heat and being cold or would we die from the radiation?
@you2tooyou2too
@you2tooyou2too 3 года назад
Sol is too small, but no gravity change, and BH is black, but inflow (accretion disk) might radiate significant heat.
@sohaildoronietareen5577
@sohaildoronietareen5577 4 года назад
Long Live humanity
@user-vx8en6rf7u
@user-vx8en6rf7u 4 года назад
wow
@mohammad12125
@mohammad12125 4 года назад
This is insane
@mohammad12125
@mohammad12125 4 года назад
Hiiiii
@joemelvin3472
@joemelvin3472 4 года назад
why is time faster near a black hole
@hanyel-shemy5378
@hanyel-shemy5378 4 года назад
#asknasa can a black hole die? please reply using my Email address lujainelshemy@hotmail.com I've mistaked in my Email address my right Email address is lujianelshemy@hotmail.com
@hanyel-shemy5378
@hanyel-shemy5378 4 года назад
So Amazing! even light can't escape!! #asknasa can a black hole die? please reply using my Email address lujainelshemy@hotmail.com
@north2590
@north2590 4 года назад
I have a theory. A black hole could end if it got large enough that the density changed and it lost the ability to warp space-time with said density, causing it to revert to it's original form
@you2tooyou2too
@you2tooyou2too 3 года назад
Just a pointless & nonsensical notion. A theory is usually based on some understanding of the physics.
@treadingonthesnake5397
@treadingonthesnake5397 4 года назад
If the nearest black hole, so called 'the size of a grapefruit', is 4 times the distance from the sun as the earth, and it takes only 8 minutes for the sun's light to reach earth, that makes the nearby black hole pretty damn close, which could cause, not just earthly global warming, but solar system warming that science has proved is happening.
@you2tooyou2too
@you2tooyou2too 3 года назад
It is much farther than any other "nearby" stars.
@treadingonthesnake5397
@treadingonthesnake5397 4 года назад
Could "global warming" be happening on all the planets of the solar system? And would that not be caused primarily by a nearby black hole? And if a black hole is nearby enough to be heating up the solar system, how on Earth could we escape our fate? I doubt we can. No one can escape the deep chasm of the dark abyss. What activated the nearby black hole? Nuclear bombs? Cern? HAARP, which increases the electro-magnetosphere to the point that Earth appears to be much much much much larger than it really is and wouldn't that cause earth to be more attracted to a nearby black hole than it would be if HAARP had never been used?
@north2590
@north2590 4 года назад
Global warming is our fault
@PMC127MAX
@PMC127MAX 4 года назад
As a Black Hole has no heat/energy signature, but incredible density, in what would seem a direct contradiction to how we think incredibly dense masses should act; I can't imagine why it wouldn't be obvious to anyone besides just myself that a Black Hole is composed of a vast collection of what we reference as the Bose-Einstein Condensate. Assuming this to be true, the entire mass of the Black Hole would act as a single element, exist (in it's current state) at or extremely near zero degrees Kelvin, radiate no energy, and convert everything that is drawn into it to a primordial pre-varied and individual elements soup. I would also propose that, after some incredible length of time, it gathers the matter from enough galaxies until it reaches a point where the core of this mass of the Bose-Einstein soup can become no further compressed, and shreds itself into individual elements as a 'Big Bang' event. Regarding the Big Bang: The Big Bang is not the beginning of the Universe. The Universe extends without limits and time has no beginning or end, because time is only our perception of the flow of the elements in and around us. Time is nothing more than a measure of the flow of energy and really no different from measuring current in an electrical circuit. What is referenced as the Big Bang is simply one of an uncountable number of Black Holes, scattered across eternity, shredding. And that is an extremely brief and simplified to a point that it remains only somewhat accurate version of my theory and I'm sticking to it.
@PMC127MAX
@PMC127MAX 4 года назад
I meant to but forgot to mention how this would relate to the perception of time. Since there would be no perceptible exchange of energy or movement of individual elements within the Bose-Einstein/Black Hole, there would therefore be no flow of energy (time) to measure. And so in a sense time would stop, and if you were somehow able to incorporate your self into the soup and back out again, you would not have experienced what we traditionally refer to as the passage of time. Would this then allow us to describe a Black Hole as a Singularly Singular Singularity?
@ianhendrick5241
@ianhendrick5241 4 года назад
what is the time in a black hole
@shobana7933
@shobana7933 4 года назад
Black hole resembles a whirlpool.. it's just a force which forms the galaxy which makes things rotating around it... we cannot enter the black hole even light .. gradually black hole may decrease and disappears everything is matter of time and size
@Pwelggs
@Pwelggs 4 года назад
are you going to do another one
@garywilkinson1538
@garywilkinson1538 4 года назад
What will happen if this black hole keeps getting bigger. And what will happen to everyone and everything in space
@nutier
@nutier 4 года назад
amazing video ! I learn to know the universe from you by this way . I think that , the black hole is not a hole , it has the black magnetic matters that the daylight cannot bright through out it .
@user-cx9cg2gv2y
@user-cx9cg2gv2y 4 года назад
i agree!