WR102. A star that is 200,000 degrees hotter than the Sun.

Several thousand light years away from the Sun there is a fiery inferno. The surface of a small star is so scorching-hot that its heat reduces any celestial bodies in the neighbouring parts of space to ashes. It is burning so furiously that it barely remains in its shape. This object is about to explode, and the blast is going to produce an incredibly powerful flare. We know just a few suchlike objects. Unique and dangerous, WR 102 is the hottest star in the universe.

#WR102 #Star #Space #Universe #Film #Video #Kosmo #WolfRayet

[Kosmo_off]

Hello everyone! How was the video? Has it given you food for speculation?

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[genericdragon]

I'm 70 years old and a supernova visible to the naked eye would be a gift from the Universe! Go Betelgeuse!

[ComaDave]

Fun fact: there is at least one Wolf-Rayet star easily visible at night.
Gamma Velorum is a quadruple star system in the constellation of Vela, and one of the components is a WC8 star. The system is approximately 1, 200 light years from Earth.

[LaibaStarXX]

Da real miss universe, since she’s the hottest star🔥🥵

[mitchellgeier]

Thank you for making videos better than anything I had growing up.

[Cipher]

I'm an astrophysicist and I just wanted to clear up a few things that I think you misunderstood in the video:

•Lighter stars actually burn LONGER than heavier stars. It's true that the amount of fuel they have available increases as they get larger, but they also burn it FASTER. WAY faster as a matter of fact. It's sort of like how a Humvee holds more total gas than a Coup but it burns it so fast that it will run out sooner. Also small stars are fully CONVECTIVE, so ALL of the star's mass gets cycled into the core to get burned as fuel. Larger stars don't do this as the layer above the core is fully RADIATIVE, i.e. gas can't sink below it, only light comes out of it. Imagine turning on the AC at your house without turning on the vent fan to actually push it through the vents. Same idea.

•stars that go supernova (those that are >8 times the mass of the sun) don't become white dwarves, they either become Neutron Stars or Black Holes. Stars smaller than that will become white dwarves but they never go supernova. The layers above the core just sort of keep expanding and expanding until all that's left is the core, which is a white dwarf.

•Stars don't undergo chemical reactions in their cores, they undergo nuclear reactions. Chemical reactions involve bonds between electrons that are bound to atomic nuclei, but there are no electrons bound to nuclei in the core. It's so hot that all the nuclei and electrons are free from each other. Nuclear reactions are things like protons and neutrons binding to each other in the nucleus. They are MILLIONS of times more energetic than chemical bonds.

[maurizioibba]

Thank you Sergey, as usually great video, I been learning a lot through your tutorials. The narrative combined with the animation and the captivating graphics make easier to assimilate this type of information which would be boring to digest from books. Keep up with the good work.

[Arwing]

That Frostpunk Music. Unexpected. Fitting, but unexpected.

[cyrilio]

you definitely uped your graphics game for this video

[GFox...]

Considering that 94 % of the universe is moving away from us so quickly that we will never be able to actually is quite a thing to say this is the "hottest star on the universe "!!

[werallgnnadieintheend]

The thumbnail agrees with the Wein's Displacement law according to which, the highest temperature (hottest star) should have the shortest wavelength (violet). Nice.

[gishjalmr]

You said @2:01 that the lighter the star, the less time it will continue to burn. That is not correct as the heavier stars live shorter lives than lighter ones. Also @2:10 you said that the star sheds its outer layers and goes supernova, leaving a white dwarf. This is incorrect as white dwarves are the remnant of smaller star incapable of a supernova. Supernova remnants are either neutron stars or black holes.

[What-einz]

2:12 Not sure if a Main Sequence star like our sun star goes supernova after the Red Giant phase. I think it expands, sheds its outer layers and becomes a white dwarf. A massive star that goes supernova will collapse inward on itself because it does not have any more fuel.

[Strype]

I've been watching Anton Petrov, John Michael Godier, Astrum, SpaceRip, and SEA for several years and this channel has NEVER been recommended to me. How on Earth did I not know about this flippin' channel?! YouTube, you failed me hard on this one.

[ArchangelExile]

Hottest star that we know of in the universe*

Fixed that for you. I hate it when people speak in absolutes as if we know for sure that it's the hottest star in the entire universe, which contains at the very least, trillions of stars, is right here, in our own galaxy. It's like when people say that Stephenson 2-18 is the largest star in the entire universe or that TON 618 is the largest blackhole in the entire universe.

[scottreed]

@2:05 - Fyi...a white dwarf is not the product of a supernova. White dwarves can be the progenitors of type 1a supernovae if in a close binary system and accretes enough mass to exceed the chandrasekhar limit.

[kimberlyperez]

I don't want to be "that person" but the hottest star in the *observable* universe would be more fitting

[robbie]

It's a good thing that all we see in the universe is in the past. Can you imagine the panic if we got our measurement wrong of what is a safe distance from those super hot stars that have already gone BOOOM!

[Gigan--a]

0:00-0:15 is just a description of Arizona

[elvinv]

Man... I Gotta admit such visually beautiful clips in this video. I wanna make HD wallpaper out of it to set on my phone. 😍😍😍😍