Thanks to light, we know the history of the universe and the composition of distant celestial bodies
How do scientists study the universe when they don't set foot on it?
How do scientists study the universe when they don't set foot on it?
- 4 cosmic phenomena have the speed of traveling through the speed of light
- Discovering new gravitational waves from two black holes collides 3 billion light-years away
The answer is light. By observing and analyzing the light transmitted from the universe, scientists can know the structure, temperature, pressure, direction and speed of movement . of bodies away from Earth billions of years. the light. Light is the source of information to reveal the history of the universe.
Edwin Hubble, a physicist, American astronomer was the first to study light from distant galaxies.
Update 24 May 2019
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