All Questions
Tagged with electromagnetic-spectrum interstellar-medium
2
questions
18
votes
2
answers
3k
views
Why isn't most hydrogen in the universe molecular (diatomic), instead of atomic (monoatomic)?
Similar questions have been asked before; but, why?
Is the monoatomic hydrogen left over from the Big Bang? And hasn't had the opportunity to collide with other hydrogen atoms yet?
Or are hydrogen ...
- 5,307
6
votes
2
answers
647
views
Why is blue light extincted more strongly than red?
We know that blue light suffers extinction more strongly than red (examples include ISM, atmosphere etc.), but why? Is it a property of the shorter wavelength itself? Can someone provide a conceptual ...
- 1,111