Smash Notes
What Does Looking at the Galaxy Reveal to Us
at 6:34
Answer
It reveals that the further away you look at a galaxy, the faster it must be moving away from you. This is known as Hubble’s Law. This allows scientists to see how fast the galaxy is expanding today, and also how it did so in the past.
Where this answer comes from
- Show
- Science Rules! with Bill Nye
- Episode
- Are We Alone in the Universe?
- Date
People
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