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Alice710 t1_iu3vwq9 wrote

Is that why it's red? We aren't talking about that.


MrJackDog OP t1_iu4bcx7 wrote

The red is because of the specific wavelength of light of hydrogen alpha ions. Most of the Star forming and dying regions of space are awash in hydrogen alpha and so are dominantly red.


Alice710 t1_iu4ef23 wrote

That's wild. This is beautiful. Thank you for sharing!