In the 20th century, scientists began to theorize what Christians have long held: that the universe had a definite beginning. Jimmy Akin and Dom Bettinelli ask what is the Big Bang, what evidence points toward it, and what are its implications.AI-powered
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Starts With A Bang! The Big Bang (Science & Faith)
Jimmy Akin's Mysterious World
The Doppler Effect
In 1868, the English astronomer Norman Lockyer discovered a new element called Helium. It's about 8% of the sun, which is to say that it's almost all of the sun after hydrogen. By measuring how far those spectral lines are shifted, you could get an exact mathematical measurement of how red-shifted or blue-shifted your galaxy was.
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