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Difference between Anthropic principle and Galaxy

Anthropic principle vs. Galaxy

The anthropic principle, also known as the observation selection effect, is the hypothesis that the range of possible observations that could be made about the universe is limited by the fact that observations are only possible in the type of universe that is capable of developing intelligent life. A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.

Baryon

In particle physics, a baryon is a type of composite subatomic particle, including the proton and the neutron, that contains an odd number of valence quarks, conventionally three.

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Big Bang

The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature.

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Black hole

A black hole is a region of spacetime where gravity is so strong that nothing, not even light and other electromagnetic waves, is capable of possessing enough energy to escape it.

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Dark matter

In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field.

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Galaxy formation and evolution

The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies.

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Helium

Helium (from lit) is a chemical element; it has symbol He and atomic number 2.

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Hydrogen

Hydrogen is a chemical element; it has symbol H and atomic number 1.

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Immanuel Kant

Immanuel Kant (born Emanuel Kant; 22 April 1724 – 12 February 1804) was a German philosopher and one of the central Enlightenment thinkers.

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Metallicity

In astronomy, metallicity is the abundance of elements present in an object that are heavier than hydrogen and helium.

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Milky Way

The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.

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Planet

A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself.

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Red dwarf

A red dwarf is the smallest kind of star on the main sequence.

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Solar System

The Solar SystemCapitalization of the name varies.

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Star

A star is a luminous spheroid of plasma held together by self-gravity.

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Supernova

A supernova (supernovae or supernovas) is a powerful and luminous explosion of a star.

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Universe

The universe is all of space and time and their contents.

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White dwarf

A white dwarf is a stellar core remnant composed mostly of electron-degenerate matter.

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