Is there any changes within the spectra of different galaxies that can tell scientists more about the universe

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2007-09-13 14:12:46 · 2 answers · asked by Gamer [Girl] 2 in Science & Mathematics ➔ Astronomy & Space

Yes.
The red shift gives relative velocities.
Absorption lines give information about
intervening gas clouds.

2007-09-13 16:49:36 · answer #1 · answered by Irv S 7 · 0⤊ 0⤋

I doubt it, physical laws are the same throughout the universe, I don't think any alien species would be as advanced as we are.

2007-09-16 14:22:55 · answer #2 · answered by johnandeileen2000 7 · 0⤊ 0⤋