Cosmology

Explore the origins and evolution of the universe.

Sample Cards

Cosmology

The study of the origin, structure, and evolution of the universe.

Big Bang Theory

The theory that the universe began from an extremely dense and hot state and has been expanding e...

Redshift

The phenomenon where light from distant galaxies appears redder because they are moving away from...

Dark Matter

The invisible matter that does not emit light but exerts gravitational forces on visible matter.

Dark Energy

The mysterious force causing the accelerated expansion of the universe.

Cosmic Microwave Background Radiation (CMB)

Remnant radiation from the Big Bang, almost uniformly distributed in all directions.

Age of the Universe

The time elapsed since the Big Bang, estimated to be around 13.8 billion years.

Gravity in Cosmic Structures

The fundamental force driving the formation, shape, and dynamics of astronomical bodies and systems.

Cosmology Flashcards

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Cosmology

The study of the origin, structure, and evolution of the universe.

The study of the origin, structure, and evolution of the universe.

Cosmology

Big Bang Theory

The theory that the universe began from an extremely dense and hot state and has been expanding ever since.

The theory that the universe began from an extremely dense and hot state and has been expanding ever since.

Big Bang Theory

Redshift

The phenomenon where light from distant galaxies appears redder because they are moving away from us.

The phenomenon where light from distant galaxies appears redder because they are moving away from us.

Redshift

Dark Matter

The invisible matter that does not emit light but exerts gravitational forces on visible matter.

The invisible matter that does not emit light but exerts gravitational forces on visible matter.

Dark Matter

Dark Energy

The mysterious force causing the accelerated expansion of the universe.

The mysterious force causing the accelerated expansion of the universe.

Dark Energy

Cosmic Microwave Background Radiation (CMB)

Remnant radiation from the Big Bang, almost uniformly distributed in all directions.

Remnant radiation from the Big Bang, almost uniformly distributed in all directions.

Cosmic Microwave Background Radiation (CMB)

Age of the Universe

The time elapsed since the Big Bang, estimated to be around 13.8 billion years.

The time elapsed since the Big Bang, estimated to be around 13.8 billion years.

Age of the Universe

Gravity in Cosmic Structures

The fundamental force driving the formation, shape, and dynamics of astronomical bodies and systems.

The fundamental force driving the formation, shape, and dynamics of astronomical bodies and systems.

Gravity in Cosmic Structures

Observable Universe

Portion of the entire universe that can be observed from Earth.

Portion of the entire universe that can be observed from Earth.

Observable Universe

Formation of Galaxies After the Big Bang

The process through which matter in the universe cooled and began to clump together to form galaxies.

The process through which matter in the universe cooled and began to clump together to form galaxies.

Formation of Galaxies After the Big Bang

Theory of Inflation

A theory suggesting a period of extremely rapid (exponential) expansion of the universe during its early moments.

A theory suggesting a period of extremely rapid (exponential) expansion of the universe during its early moments.

Theory of Inflation

Black Holes in Cosmology

Stellar remnants with immense gravity, affecting the structure and evolution of galaxies.

Stellar remnants with immense gravity, affecting the structure and evolution of galaxies.

Black Holes in Cosmology

Multiverse Theories

Hypotheses proposing the existence of multiple or an infinite number of universes.

Hypotheses proposing the existence of multiple or an infinite number of universes.

Multiverse Theories

Fate of the Universe

The ultimate destiny of the universe, determined by its density and rate of expansion.

The ultimate destiny of the universe, determined by its density and rate of expansion.

Fate of the Universe

Hubble Constant

The rate of expansion of the universe, key to determining its age and size.

The rate of expansion of the universe, key to determining its age and size.

Hubble Constant

General Relativity in Cosmology

Einstein's theory explaining gravity as the curvature of spacetime by matter and energy, foundational to modern cosmology.

Einstein's theory explaining gravity as the curvature of spacetime by matter and energy, foundational to modern cosmology.

General Relativity in Cosmology

Cosmic Horizon

The limit or boundary of the observable universe beyond which we cannot obtain information.

The limit or boundary of the observable universe beyond which we cannot obtain information.

Cosmic Horizon

Gravitational Waves in Cosmology

Ripples in spacetime caused by violent events, providing new ways to observe the universe.

Ripples in spacetime caused by violent events, providing new ways to observe the universe.

Gravitational Waves in Cosmology

Structure of the Universe

The large-scale arrangement of matter in the universe, including galaxies, clusters, and superclusters.

The large-scale arrangement of matter in the universe, including galaxies, clusters, and superclusters.

Structure of the Universe

Cosmology and Fundamental Forces

The study of how the universe's four fundamental forces--gravity, electromagnetism, strong nuclear, and weak nuclear--shape its evolution.

The study of how the universe's four fundamental forces--gravity, electromagnetism, strong nuclear, and weak nuclear--shape its evolution.

Cosmology and Fundamental Forces

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