Physics
Kayley99
27

The redshift of a star means that _____. a.the star is moving closer to the sun b.the star is moving c.the star is about to explode d.the star is getting farther away

+2
(2) Answers
Ledoux958

The correct answer is D. the star is getting farther away. When the light has red-shifted, it shows that everything is moving away from a certain point. This is known as the Doppler effect and proves the Big Bang (which would be the center point that everything is moving away from). Just as a 'for your information', blue shift is when the star is moving towards us. Hope I helped :)

karla519

The only thing we know of that can red-shift the light of a star is motion away from us.

Add answer