Meaning a little less than half of that radius is way way way less than 20 million times less dense. That’s wild.
I think about that when looking at luminous gas clouds that are millions of lys across. We can only “see” it because all the photons coming from that region of space is concentrated in a tiny visible area.
Meaning a little less than half of that radius is way way way less than 20 million times less dense. That’s wild.
I think about that when looking at luminous gas clouds that are millions of lys across. We can only “see” it because all the photons coming from that region of space is concentrated in a tiny visible area.