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Lifecycle of a Star, Red shift, Formation of the Universe (The Big Bang),…
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Red shift
As objects move further away from the Earth, they appear more red. This is called Red Shift.
As a galaxy, for example, moves away from Earth, the frequency of light waves decreases. As the frequency decreases, the wavelength increases
Red has the longest wavelength of any colour, explaining why galaxies further away and moving faster have a more red appearance, and not any other colour
The inverse of this is Blue Shift, where closer/slower objects have a more blue tint.
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Elements heavier than Iron are formed in Red Super Giants and Supernova, as they require extreme heats to be formed.
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Black Dwarfs have expended all their energy, leading to them no longing emitting light
It is theorised that after the collapse of a black hole, a white hole is left behind. Their is presently no proof of this, however, due to the fact no black holes have ever collapsed.
