The Big Bang Theory, Part 3: CMB
CMB stands for Cosmic Microwave Background Radiation. And that’s the echo of the big bang, its relic. Let me explain.
The universe was originally made up of hot photons, electrons, and other particles. When protons and electrons combined to form hydrogen because of the expansion of the universe, the photons were able to move freely through […]
The Big Bang Theory, Part 2: Nucleosynthesis
Yes, yes, I know the title looks impressive!
Ok, so you’ve been reading about how the redshift explained the beginning of the universe. If we go back up in time, galaxies start to stick back up together (instead of spreading, they regroup, until they’re just a dense hot mixture of particles), and 13,7 billion […]
The Big Bang Theory, Part 1: Redshift
The Redshift was the first element to contradict Aristotle’s view of the universe, which is that the universe is static, never changed, and will never change (except on Earth, where things do change).
When American astronomer Edwin Hubble began to observe galaxies, he noticed that their spectra (what types of light do objects emit: mostly X […]
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