@TheIronicIdiot More bullshit. Discoveries aren't made by the Majority. And if you have a magnet shoved up your ass, nothing is stopping you from demonstrating it. That's the real scientific currency: demonstration. Theory doesn't become a candidate for truth without it.
@TheIronicIdiot Bullshit. Not knowing everything isn't equal to knowing nothing. More than precisely nothing has been discovered about comets (if nothing were known, we wouldn't even know >of< them). Spectrography was being used a hundred years ago to read the chemicals in cometary tails. Imagine how much progress had been made since then.
@TheIronicIdiot That's called science, an attempt at explaining something using observations. The attempt was not to explain what it is, but what it is doing. Men have some idea what comets are, since probes have been sent to sample the tail material, and in the near future the Rosetta mission is planning to land on one.
@NEVERSTOPJAMIN It didn't fall into the Sun because it approached on a path which carried it slightly off to one side of the Sun. It was the Sun's strong gravity which bent the comet's path and carried it around. Some comets approaching from distant space are on much tighter orbits, and their paths get bent directly into the Sun.
@SmileLee No, physics dictates that anything that was part of the comet has to be travelling at the same speed as the comet. The gas was ejected backwards, but then its velocity will be the net of the ejection speed, and the comet speed. If that was the case, then we're talking about a comet that's ejecting a gas faster than it's own forward speed. That's called a rocket and propulsion. So the comet was being propelled by ejecting gas.
@Nomoreidsleft Yes, but unlike your jet's engine burning the gas, The ejecting gasses aren't adding a higher velocity to the comet. The sun's heat is what's causing the comets composition to change from the solid to liquid to gas. The comet produced a coma when it reached a distance close enough to the sun to gain that "atmosphere". Then it's magnetic field is generating it's field what's possible is that we may be witnessing a tail disconnection event occurring with a ion severing. F=q[E+v*B]
@SmileLee Yes, if the gas is shooting out from the back of the comet. Newton's 2nd law says that there's a equal and opposing force. (i.e. the ejected gas will add thrust to the comet) I suspect that there is some kind of drag on the gases due interaction with the Sun's corona.
@Nomoreidsleft Who says gravity is the only of the four fundamental forces at work in this phenomenon? Think about all the differently charged particles interacting in the cornea of the sun. Maybe that had some effect...
@Nomoreidsleft I did say that there are 4 fundamental forces. The fact that Weak didn't apply was somewhat implied. However, Strong was applied in keeping the atoms in the comet together and was (and hopefully still is) applied in the fusion of the protons and neutrons far beneath the surface of the sun. Also, it just occurred to me that it might have something to do with the bending of the space-time/gravity/E=mc^2 type stuff might apply… too late to think logically. i don't know…
@sploderdotcom Hard to tell from a 3 second video. The Strong and Weak force keeps the subatomic particles together to form atoms. If the tail was caused by nuclear decay, that would still be propulsion, since it's in opposite direction to motion. There's not enough gravity difference to cause the tail to run backwards in time relative to the comet. It must be drag from the surrounding solar matter, which means the comet is faster than the Solar wind.
@Nomoreidsleft Then that is one friggin fast comet. But what caused it to change direction?... anyways, an idea that could be relating to the speed: when the ice from the comet sublimated into water vapor, the H2O molecules absorbed some of the thermal energy from the sun, thus lowering the temperature of the surrounding particles (evaporative cooling). On Earth, when fluids in the same environment have different temperatures, convection occurs. Do you think the same rules might apply?
@sploderdotcom Well, given that the escape velocity from the Sun is 618 km/sec, than the comet should be going slightly under that, or else it would keep going and never come back. Solar wind is from 300 km/s to 800km/s. So I guess, the trail could be caused by the drag from the solar wind, because the comet and gas escaping from it is going faster than the Solar wind. The comet is more massive and drag on it is less than drag on the gas.
@Sealesgulf Did they ever say they did? Science is all about gathering evidence and making/revising/replacing theories and laws formed from gathered evidence.
Of course, there are a few things we do know (the Earth revolves around the sun; the sun is a star; etc.), but this is more of an example of how much more we have to learn.
@kentuckycat It's not that the ice is withstanding the heat.Nowhere NEAR that.You see that tail?That's the ice melting/sublimating.You can tell by the length of the tail that the ice is changing state of matter VERY rapidly.However,the comet was extremely cold before it started to get warmed by the sun.The closer it got, the warmer.The comet was moving really quickly and escaped the sun's pull very quickly.Also,we've made matter reach temperatures of <10^-9 K, probably 10° colder than the comet.
@awhitness It is known that "extinct comets that have passed close to the Sun many times have lost nearly all of their volatile ices and dust and may come to resemble small asteroids." It's probable that this comet lost most of it's ice water, carbon monoxide, carbon dioxide, methane and ammonia. Continued observation will be exciting.
Wow, that is some amazing ice! OH, I get it. The ice must be made of dark matter so its like a black hole, there really is enough ice to last millions of years.
@SmileLee No not according to physics. Both the comet and the surrounding gas are moving at the same speed. If it's fast enough for the comet to escape from the Sun's gravity, then it's fast enough for the gas to escape as well.
F=(GmMsun)*r^-2, so the Sun pulls harder on the comet than the gas. There must be something else going on, like something similar to condensation trails that jets make.
@Nomoreidsleft It cannot be assumed that the gas coming off of the comet is going at the same speed as the comet due to it being released from itself. If the gasses are being released from it they are a force attempting to break free of the gravity of the comet. Thus the sun would be their probable trajectory.
Like you said about the trails from a jet. The only difference being that instead of them coming back down to Earth, they are going back towards their highest gravity source. subbed btw.
Wow
spacekamil2345 3 weeks ago
another 'dirty snowball'
SiSePuedo 1 month ago
@TheIronicIdiot More bullshit. Discoveries aren't made by the Majority. And if you have a magnet shoved up your ass, nothing is stopping you from demonstrating it. That's the real scientific currency: demonstration. Theory doesn't become a candidate for truth without it.
qed100 2 months ago
@TheIronicIdiot Bullshit. Not knowing everything isn't equal to knowing nothing. More than precisely nothing has been discovered about comets (if nothing were known, we wouldn't even know >of< them). Spectrography was being used a hundred years ago to read the chemicals in cometary tails. Imagine how much progress had been made since then.
qed100 2 months ago
@TheIronicIdiot That's called science, an attempt at explaining something using observations. The attempt was not to explain what it is, but what it is doing. Men have some idea what comets are, since probes have been sent to sample the tail material, and in the near future the Rosetta mission is planning to land on one.
Nomoreidsleft 2 months ago
chuck norris comet
josenf14 2 months ago
I wonder when the pull of the sun will pull it right back... surprised it got that close without being pulled in by the immense gravity?
NEVERSTOPJAMIN 2 months ago
@NEVERSTOPJAMIN It didn't fall into the Sun because it approached on a path which carried it slightly off to one side of the Sun. It was the Sun's strong gravity which bent the comet's path and carried it around. Some comets approaching from distant space are on much tighter orbits, and their paths get bent directly into the Sun.
qed100 2 months ago
I want to rename that Comet HoneyBadger2011, cuz it just went right up to the Sun and it just don't care.
MiHiVidz 2 months ago
wow
kaisersossaa 2 months ago
Comment removed
SmileLee 2 months ago
Wow so that you mean is cake is good?!?!?!?
12359735 2 months ago
Comment removed
SmileLee 2 months ago
@SmileLee No, physics dictates that anything that was part of the comet has to be travelling at the same speed as the comet. The gas was ejected backwards, but then its velocity will be the net of the ejection speed, and the comet speed. If that was the case, then we're talking about a comet that's ejecting a gas faster than it's own forward speed. That's called a rocket and propulsion. So the comet was being propelled by ejecting gas.
Nomoreidsleft 2 months ago
Comment removed
SmileLee 2 months ago
This has been flagged as spam show
@Nomoreidsleft Yes, but unlike your jet's engine burning the gas, The ejecting gasses aren't adding a higher velocity to the comet. The sun's heat is what's causing the comets composition to change from the solid to liquid to gas. The comet produced a coma when it reached a distance close enough to the sun to gain that "atmosphere". Then it's magnetic field is generating it's field what's possible is that we may be witnessing a tail disconnection event occurring with a ion severing. F=q[E+v*B]
SmileLee 2 months ago
@SmileLee Yes, if the gas is shooting out from the back of the comet. Newton's 2nd law says that there's a equal and opposing force. (i.e. the ejected gas will add thrust to the comet) I suspect that there is some kind of drag on the gases due interaction with the Sun's corona.
Nomoreidsleft 2 months ago
@Nomoreidsleft Who says gravity is the only of the four fundamental forces at work in this phenomenon? Think about all the differently charged particles interacting in the cornea of the sun. Maybe that had some effect...
sploderdotcom 2 months ago
Comment removed
Nomoreidsleft 2 months ago
@Nomoreidsleft I did say that there are 4 fundamental forces. The fact that Weak didn't apply was somewhat implied. However, Strong was applied in keeping the atoms in the comet together and was (and hopefully still is) applied in the fusion of the protons and neutrons far beneath the surface of the sun. Also, it just occurred to me that it might have something to do with the bending of the space-time/gravity/E=mc^2 type stuff might apply… too late to think logically. i don't know…
sploderdotcom 2 months ago
@sploderdotcom Hard to tell from a 3 second video. The Strong and Weak force keeps the subatomic particles together to form atoms. If the tail was caused by nuclear decay, that would still be propulsion, since it's in opposite direction to motion. There's not enough gravity difference to cause the tail to run backwards in time relative to the comet. It must be drag from the surrounding solar matter, which means the comet is faster than the Solar wind.
Nomoreidsleft 2 months ago
@Nomoreidsleft Then that is one friggin fast comet. But what caused it to change direction?... anyways, an idea that could be relating to the speed: when the ice from the comet sublimated into water vapor, the H2O molecules absorbed some of the thermal energy from the sun, thus lowering the temperature of the surrounding particles (evaporative cooling). On Earth, when fluids in the same environment have different temperatures, convection occurs. Do you think the same rules might apply?
sploderdotcom 2 months ago
@sploderdotcom Well, given that the escape velocity from the Sun is 618 km/sec, than the comet should be going slightly under that, or else it would keep going and never come back. Solar wind is from 300 km/s to 800km/s. So I guess, the trail could be caused by the drag from the solar wind, because the comet and gas escaping from it is going faster than the Solar wind. The comet is more massive and drag on it is less than drag on the gas.
Nomoreidsleft 2 months ago
Its nice when things like this happen. It makes our "super scientists" realize they don't know hardly anything about the universe.
Sealesgulf 2 months ago
@Sealesgulf Did they ever say they did? Science is all about gathering evidence and making/revising/replacing theories and laws formed from gathered evidence.
Of course, there are a few things we do know (the Earth revolves around the sun; the sun is a star; etc.), but this is more of an example of how much more we have to learn.
sploderdotcom 2 months ago
UFO
TheUkaszPL 2 months ago
That comet is an adventurer, and he didn't take an arrow to the knee
iamjoesauce 2 months ago
Dang that's so close. Hmmm I wonder what it's made of.
dna7056 2 months ago
A nearly to be close encounter of a kind
deepakgogoi24 2 months ago
Выжила Лавджойка, хоть и без хвоста :) Солнце послужило точкой поворота, выходит
KalseRru 2 months ago
Охуенно ) Когда-нибудь и мимо нас чё-нибудь пролетит )
yarodya 2 months ago 4
Captain's log: I just lost my hair.
recumbenttrikesnl 2 months ago 16
@recumbenttrikesnl Captain's log: A bunch of our ship fell off and nobody likes me.
djargus 2 months ago
There's ice that can withstand 2 million degrees? Why isn't NASA working ice that can withstand my bourbon?
kentuckycat 2 months ago
@kentuckycat It's not that the ice is withstanding the heat.Nowhere NEAR that.You see that tail?That's the ice melting/sublimating.You can tell by the length of the tail that the ice is changing state of matter VERY rapidly.However,the comet was extremely cold before it started to get warmed by the sun.The closer it got, the warmer.The comet was moving really quickly and escaped the sun's pull very quickly.Also,we've made matter reach temperatures of <10^-9 K, probably 10° colder than the comet.
sploderdotcom 2 months ago
FML, I lost 3 sek of my life -.-
NomanTube94 2 months ago
@awhitness It is known that "extinct comets that have passed close to the Sun many times have lost nearly all of their volatile ices and dust and may come to resemble small asteroids." It's probable that this comet lost most of it's ice water, carbon monoxide, carbon dioxide, methane and ammonia. Continued observation will be exciting.
SmileLee 2 months ago
Incredible. It passed within 88,000 miles of the Sun's surface & survived.
ZedAlfa273 2 months ago
Cool, it must have turned into molten metal.
harleynut1969 2 months ago
Wow, that is some amazing ice! OH, I get it. The ice must be made of dark matter so its like a black hole, there really is enough ice to last millions of years.
awhitness 2 months ago
Holy moly, how fast is that thing going? I though the tail is always away from the direction of the Sun, because it's due to solar wind.
Nomoreidsleft 2 months ago
@Nomoreidsleft The gravitational pull of the sun, at that distance, is much stronger than solar wind.
SmileLee 2 months ago
@SmileLee No not according to physics. Both the comet and the surrounding gas are moving at the same speed. If it's fast enough for the comet to escape from the Sun's gravity, then it's fast enough for the gas to escape as well.
F=(GmMsun)*r^-2, so the Sun pulls harder on the comet than the gas. There must be something else going on, like something similar to condensation trails that jets make.
Nomoreidsleft 2 months ago
@Nomoreidsleft It cannot be assumed that the gas coming off of the comet is going at the same speed as the comet due to it being released from itself. If the gasses are being released from it they are a force attempting to break free of the gravity of the comet. Thus the sun would be their probable trajectory.
Like you said about the trails from a jet. The only difference being that instead of them coming back down to Earth, they are going back towards their highest gravity source. subbed btw.
SmileLee 2 months ago
Sun: LOVEJOY IMMA EATCHOO
Lovejoy: lol no
That's pretty much how that went down.
Cavatica 2 months ago
Fantastic view!
spark444chaser 2 months ago
Awesome guys!
Martian716 2 months ago