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Natiijada casharka

I can describe what redshift is and how it is measured.

Muuji qoraalka
Telescopes extended what was visible after their invention in the seventeenth century. Images detected by telescopes in space are not distorted by effects of the Earth’s atmosphere. A galaxy is a group of hundreds of billions of stars, and there are many galaxies spread across the universe. A visible spectrum of light emitted from stars or galaxies shows dark lines of frequencies of light. Red shift is the movement of hydrogen lines towards the red end of the visible spectrum.

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