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"Inside the Image // Hubble Space Telescope"

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"Herbig–Haro 24"

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We have here uh something called a Herbig–Haro 
object and specifically it's HH 24. Herbig and  

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Haro made catalogs of of these objects in 
the sky and they're of interest because  

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they give us a list of forming star systems. 
It's in the Orion B molecular cloud complex,  

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a remarkable area of the sky. These very thick 
dark clouds that you see on both sides at first  

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it's it's just a collection of dust and gas. 
Areas where there's more dust and gas start  

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pulling in by gravity and eventually this starts 
collecting into Proto Stars areas of dust and  

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gas that are going to get enough material to 
eventually turn into stars, but to do that you  

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need a nuclear reactor at the center of these 
stars, you're not talking about fission like  

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uranium and nuclear power plants on the Earth, 
you're talking about the ever elusive fusion,  

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we always want to figure out how to do hydrogen 
fusion so we have an infinite source of power  

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and that's because that's what's powering 
the center of these stars. When you can push  

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hydrogen atoms together at high enough pressures 
and temperatures they will fuse together and  

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create a helium atom. When you do that it emits 
light in the process then you have a star being

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born. And as the they start to turn on you get 
these jets turning on as the material shoots off  

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from the magnetic fields and you get a glowing 
light, which in this case you see coming from  

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around and behind the clouds so you don't see 
the central object you do see some objects off  

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to the side, creating their own jets where the 
infrared light has gotten through and allowed  

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us to see a little bit closer around but this 
Cloud right here surrounding the center of HH 24  

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is so dense we don't see all the way through. 
Here we're earlier on in the process the number of  

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stars forming is still relatively modest and the 
picture is dominated by the dark clouds that are  

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enabling the formation but you'd have to come back 
many millions of years later to have this mostly  

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converted to Stars it's going to look like this 
for a while certainly for most of our lifetimes.

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"HH24 Orion B Molecular Cloud"

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