Assertion: doppler effect | /r/ObjectUse | used in astronomy
Facets:
Source sentences:
text: and we’ve talked about Edwin Hubble, so let’s talk about some of the big ways that the Doppler shift is used in astronomy.
text: In addition to observations of visible light, the Doppler effect for radio waves is utilized by astronomers to determine the velocities of dust clouds in the spiral arms of the Milky Way galaxy.