The star that blew up (NEWS) - Deep Sky Videos

[@ronaldderooij1774]

Finally I understand the difference between type I and type II supernovae. And it took the guy only 30 sec.

[@grayswandir47]

I liked that part too.

[@freddan6fly]

Me too liked it.

[@sixtysymbols]

More on Type II SNs coming from Sixty Symbols next week! (sixtysymbols is a sister channel of Deep Sky Videos!)

[@ACherimoya]

Holy crap, I had no idea we observed that many supernovae each year!

[@Hongobogologomo]

Lots of stars in the universe.

[@hafizajiaziz8773]

There are more stars in the universe than the grains of sand on earth

[@Meanderthal17]

What amazes me is the concept of time in these cases. Would this be considered to have just now happened? Or happened a hundred years ago? Do we consider now to be what we see, or when it actually happened far from us?

[@Dhujdic]

I am watching every single video on DeepSkyVideos. Please keep more coming! Blows me away every time.

[@HenrikoMagnifico]

An oldie but a goldie!

[@DeepSkyVideos]

Hey, no shame in that... I had no idea the Slo Mo guys even knew about Deep Sky Videos until a few thousand people subscribed over night! I like them even more now! thanks guys!

[@DeepSkyVideos]

Hey, Gav from the slowmo guys knows about periodicvideos and sixtysymbols (we once talked about filming somthing together but got too busy) ... I didn't know he knew about deepskyvideos though! What a pleasant surprise that he mentioned it.

[@joecusack3015]

Slow Mo guys were right on!

[@mxrcla596]

Joe Cusack yaa

[@rdallas81]

I love this stuff! Look where we came in 100 years time!!!! Just plain awesomeness!!!!!!!!

[@AntiMessiah2023]

Roy Hemion The more we know about space the less we seem to understand it 😄

[@hartistry1957]

This guy did a sound byte on the Gaudi album, by Alan Parsens; he spoke of 'looking back in time while gazing out at the stars'.

[@DeepSkyVideos]

check our M1 video.... The Crab Nebula was formed by a supernova in our own galaxy and caused quite a splash! A supernova video will also be uploaded to our "sister channel" sixtysymbols next week with more from Mike!

[@photonphisher]

The apparent change of size of some stars in that video can be due to any number of factors like focus, atmospheric turbulence, telescope tracking etc. The other random dots that appear in the video are just hot pixels.

[@kardredren]

The time lapse footage is great, I wonder if we'll get to see higher resolution images of the remnants before it fades.

[@DivingDeveloper]

Hi TheGlassDot, thanks for replying. I wasn't referring to watching the star move at all. I was suggesting that if Hubble took the exact same exposure again a year from now when the supernova will likely have subsided, what will we see? Likewise, in a year.. what would we see? Assuming no other perceptible change in the galaxy over these time frames, would the original dot still be present (in which case it's the wrong one) and how do we know that those four pixels are from the same star?

[@oisiaa]

How would this supernova affect any life that is in M95?

[@XboxPhantom]

Yes, its a "Lunar Phase Calender". Horizontal Columns represent Days, and Vertical Columns are the months of a year.

[@DeepSkyVideos]

in it - in one of the spiral arms!

[@Godmil]

No sorry, it can seem crazy I know but when you understand how spectral analysis works it's pretty amazing how much you can learn from something so far away (such as the elements that comprise the star as well as it's velocity in relation to us, etc.).

[@DeepSkyVideos]

well, it happened millions of years ago and the light only just got here.... and the explosion is happening over many months in the sky... so it is sort of slow motion?

[@oldsynner]

Can someone clarify if this is "in" M95, or in the same part of the sky from our point of view? Great video series!

[@valsteppe7754]

Near the end they are talking about the difference between type a and b supernovae. I wonder which is more common and by how much.

[@Genavieve21]

Gav and Dan sent me

[@teyxen]

Colour shifts predictably depending on how fast the object is moving away from us or towards us. Away fro us is redder and towards us is bluer. Thus, you can presumably take into account the difference in the redness or blueness by looking at the neighbouring stars and assuming that they will be travelling in relatively the same direction at the same speed. But that's just a guess so I may be wrong :)

[@moyrml]

a physics question came to my mind... due to the relative movement of the star and us, dont all the colors shift? if so, how is it possible to analyze the spectrum of the explosion?

[@herpderp3639]

very interesting, how long will the explosion from the supernova last? The time lapse didnt give a timescale. Are we talking days/weeks/years?

[@bdoomed]

While I don't REALLY know what I'm talking about, I do believe they take color-shift into account when studying the light. There are calculations that one can employ to account for the shifting of light.

[@DystopianEmpire01]

Actually yes, I did expect a vid of a nova, it's been filmed before a few years ago, so it's not implauseable to catch one in the event.

[@Astrostevo]

Thanks -superluminous (beyond just brilliant) clip here. How long till they can detect the neutronstar - pulsar that has formed assuming they can? Any idea?

[@cjacked]

the fact that these scientists give their time to brady and help us understand this stuff is really amazing, i almost wonder whether i should start paying tuition!

[@TheFlyingMantis]

I'm assuming that the visual difference from now//there is far over 10 years? like, in correlation to our time (year)- when did the star actually blow? 10? 20? Longer?

[@loykdoyk]

Do you happen to know when the closest supernova (relative to us) occured? How many years has it been since there was one as close as this one?

[@DivingDeveloper]

I'm really surprised that the original star can be identified. How can one be sure that the 'before' star really is the one that blew up? Presumably come back a few months or a year from now, re-image the galaxy and see nothing where the star used to be? What would we see if Hubble took exactly the same exposure and framing of M95 a year from now? Five years from now? A planetary nebula, a dim 'star' or nothing?

[@shruggzdastr8-facedclown]

Please forgive me for this question being a trivial deviation from the stated subject of this video, but I have to know if those are quote-a-crosstic puzzles taped to the wall behind Prof. Merrifield?

[@ShahrukHossain]

@DeepSkyVideos Brady ! Can you ask the professors about a news report I read a few months ago about a possible Supernova close to the Solar system(?) which if it occurs will appear as "A SECOND SUN" in the sky ? :D

[@SapphireSiren]

Okay, so... I just went back to watch the other video about the original news of the discovery. At 6:00, the same guy said that only about 1 supernova is discovered a year. If that's true, how can there be anything but 2012a? How did it get all the way to 2012aw? They start over the alphabet every year, so like this same guy (sorry for not knowing the name) said, there have been 49 discovered this year. Can someone explain this inconsistency?

[@Designandrew]

I think it would be great if you did an episode on backyard amateur astronomy. The gear they use, the people who do it etc. There is a big aussie site called "ice in space" they are a great site.

[@zeus018]

@DeepSkyVideos How along ago approximately did this star actually go supernova?

[@wsda1000]

How far is this exstar? How many light years away so how long was that light traveling through space to reach our sight?

[@akren2482]

just a random thought. since stars are all different colors (wavelengths) i know they emit other non seen stuff too like infared, ultraviolet obviously, but do stars give off radio waves or gamma? how extreme is the range of the emited electromagnetic radiation?

[@CmdrGendoIkari]

Supernova SN 2011dh occurred in galaxy Messier 51 last year. That galaxy is roughly 10 million light years closer.

[@amazinggadgets6207]

You guys need to make the audio on your videos louder .. I have my volume on max and still can't hear that well.

[@EquinoxAwesome]

What wowzabowza123 said. Theres a thing called a Schwarzchild radius. When something with so much matter as a really big star supernovas, it collapses in on itself. If it goes to the Schwarzchild radius (which is verrrrrrrrrrrrrry small) when it collapses, it will become a black hole. Light can even be bent and almost not let escape (or maybe it cant escape) and if you were close enough and you didnt die (which you would), its might even be possible it bends so much you see the back of ur head.

[@MrHavatar]

Lovely to see this guy so passionate about this.

[@YBTrolling]

Does the last part also mean that the type 2 super novas comes from younger stars than type 1?

[@MCubedMusic]

Very cool, informative, and thought provoking. Glad I came over here thanks to the awesome and always entertaining Slowmoguys! :D

[@CmdrGendoIkari]

That's because the telescope that took the photos has six "arms" holding the secondary mirror. Those cause diffraction spikes.

[@SGFaunit]

is there another supernova at the top left corner of the vid 5:45 because the dot is almost growing/moving.

[@caffeinerage]

I was just looking that up myself. M95 is, according to Wikipedia, 38 million light years away. So, that gives us a rough, ballpark figure. Granted, I'm not sure how much closer, or further away, that one star was in relation to the central mass of the galaxy. But, regardless, it has been gone for many millions of years.

[@shabirparwaz]

So, how long ago did it blow up at the moment that we observe it?

[@BearlyGrizzly]

can anyone tell me why this isn't on the sixty symbols channel? are they separating astronomy and physics videos?

[@bullamarta]

cheers guys ,been waiting for this

[@supersaiyan285]

That would be really great if you filmed a video with Gav and Dan! If that would be possible, I'm sure that it would result in an amazing video and I bet that it would be a blast for all of you!

[@SciPhi161]

I wonder if any species located in M95 saw the supernovae and what they thought of it's light

[@NeonSloaney]

cont. and the outer layers bounce off this core, crushing the new core into a neutron star or black hole. When the outer layers bounce, heat and pressure mount to extremely high levels, and fusion to iron and beyond occurs not over millions of years but in as little as 100 seconds: thats a metric shit tonne of energy, enough to outshine the galaxy it's in usually for a few hours to upto several months. It's a very hot, very bright remnant that is left behind.

[@Uhor]

it would be great if you make a video composed of all the amazement face expresions of sixtysimbols and periodicvideos

[@tr1bute1]

"Watch this bit of space" .. I was paranoid of a scary face with horrifc screams to pop up ;D Great video, thanks for the effort & upload ! ;)

[@marcusPmarcus]

It would not affect any life that might be in M95; the stars there are likely just as separated as they are in our own galaxy, and therefore, no solar system would be close enough to this star to be affected. If the star itself had a solar system, it would have been destroyed long, long ago when the star began expanding into a red giant.

[@Meltonator]

OK I am a little confused and im only 13 and i study kinda deep into this stuff, so does a super nova explode like a bomb, or just slowly over time?

[@heavyharris5580]

If you have netflix you should watch the History channel series "The Universe." I also recommend Carl Sagans Cosmos. You can learn anything and everything about the universe from those series.

[@MrLamb1994]

this is one of the most interesting videos i have watched on KZbin :D

[@MrSiwat]

Well done Brady. Fascinating stuff. Loving your other vids. too.)

[@RangerLab]

Will you know if that star becomes a black hole or a neutron star in our life times?

[@07956640535]

I love the fact this super nova went off eons ago to only now be perceived.

[@sophiel.3487]

Why does my huge star look like Orbs up close. I have one where the Orbs has holes in them so why do they not look like a spot like it does up in the sky or perhaps it's a planet or mother ship??

[@bokokun]

Can someone tell me why the supernova from 6:13 to 6:23 has a hexagonal shape? Thank you in advance.

[@moebigsley1976]

That is an awesome poster in the background of the moon phases.

[@sasuke2uzumaki]

is there a site where you can watch spacecam live like in 5:58

[@didotb01]

nice vids... anyway I liked your videos and Gavin from The slow mo guys gave the url to their subscribers welldone vids bro..

[@Bugside]

How did they detect such a small spec on the universe?

[@hydrilisk0]

Another great video. Thanks so much Brady :)

[@emzeroth]

I wish I could understand this and get as excited as some of the other viewers

[@danmcreynolds]

M95 is only about 37 million light years away. Literally in our backyard as far as astronomical distances go.

[@surfbouy]

Cripes! The labor involved in finding something like this has got to be mind numbing...

[@spexbeanfarmer]

is the audio out of sync?

[@NeonSloaney]

What happens in a super nova is there is an imbalance of force. Gravity wants to pull the star to the core, and the sun's nuclear furnace pushes matter and energy away from the core. In main sequence and super giant phases there is an equilibrium of push and pull, so the star stays stable. When the nuclear furnace no longer can fight gravity, the star collapses. The middle of star stops suddenly, at a certain density because of something like the Chandeskaar limit,

[@ASMRunning]

wait, so there were 23 supernovas already this year! you should make a video for each. you know what, you should create a channel devoted to supernovas

[@ReubenLL28]

The explosion is very fast, but you have to remember the colossal scale of the explosion. In such a large amount space, even an incredibly quick explosion will seem to occur quite slowly from such a far distance.

[@dvnbrgr]

What does this video got to do with the slow mo guys?

[@kevinslater4126]

How can you tell it's a red star and it's not actually a blue star that's embarrassed?

[@LittleBigChina]

depends how far away it is - if its in our galaxy, then possibly...if you could see it though, it might come with some health warnings :)

[@hiperson641]

damn it brady, why the hell are your channels so awesome?

[@ShahrukHossain]

I am ! Wow ! That's still bright, so two moons eh ? How do they estimate the time on this ? 1 day to 1 million years is pretty large range :P

[@BlindSoothsayer]

If this supernova will fade away within a few months, then how is the crab nebula still visible?

[@ncfatcyclist]

So what will be left of the star?

[@andreek8559]

Watching this and it came to the end and I’m like, is there more please?

[@blikeredaxis]

REALLY enjoyed this one. Learned new things.

[@loykdoyk]

Awesome, thanks for the info. I'm reading up on it right now.

[@chopperboi89]

5:20 -ish he refers to it as an "explosion" a couple times, but isn't it an implosion?

[@masbaiy4858]

It is an explosion, closely following an implosion. There's a video in this Deep Sky or Sixty Symbols (forget which) that try to guess why explosion follows star implosion.

[@Jaredo66]

I can hear them quite well. Probably your speakers or something?

[@savagepug]

I think it's like the astronomer said that supernova this relatively close are more rare and not a "dime a dozen".

[@musicbaby756]

Slow mo guys sent me this is such a great video, really informative and quite cool to say the lest

[@travel_blogger_]

Hi, Does anybody know something about induction magnetometers? I'm trying to learn something about these devices :( Thank you

[@dhughes1969]

It's amazing in the time-lapse/before after pictures that area of space was so black you couldn't see anything then bam! A fairly big bright dot appears. It's hard to imagine the scale of that.

[@Alfieboii]

Even though this is a quite distant event with no real effect on our daily lives, I find this very exciting!

[@rhondah1587]

Yes. I think about the very real possibility that there are other beings out there on other planets that are looking at the same things we are looking at and there may even be some who have discovered that there are planets orbiting our star (the sun). Also, if a species located inside M95 did see this supernova, it was millions of years ago that they did.

[@GETOFFMYBOARD]

Does a Super Nova create a black hole?

[@xdraog]

I liked this guy. He really knows his stuff. So much knowledge, he has.

[@lv8pv]

What happen to the presumable planets around this star after it went supernova ?

[@liamtung4435]

+lv8pv gone.

[@lv8pv]

+liam crowhurst like in free floating or like in dust

[@liamtung4435]

idk tbh. i'm guessing it would be dust. just because how powerful it is.

[@lv8pv]

I think a star that go supernova expand rapidly swallowing the closest planets before it go supernova ? The planets not swallowed get torched badly but stay intact ? And the furthest gas giants stay mostly untouched ? A star that go supernova leave behind a white dwarf don't it ? A white dwarf with less mass ? If it have less mass will not many if not all planets not destroyed become free floating ? A less massive white dwarf must have some gravitation impact on the planets ? Any experts out there ? please enlighten us =)

[@Vallitium]

+lv8pv I am not an expert, but from my knowledge of this I can probably answer some of your questions. 1. When a star goes supernova it implodes and then explodes. It does not swell up "swallowing the closest planets". 2. The gas giants would be ripped apart. A solar system is tiny compared to the size and power of a supernova. 3. Supernovae leave behind either neutron stars or black holes. This star, being small at 8M☉, would have left behind a neutron star. 4. In the extremely unlikely event that any of the planets around it survived they would have probably been ejected out into deep space.

[@ReuploadArchivist]

Thank Gavin!