The Big Bang Theory is the prevailing cosmological model for the universe from the earliest known periods through its present expansion and cooling.

Dark Energy is a hypothetical form of energy believed to be responsible for the observed acceleration of the universe's expansion.

Edwin Hubble's observations of distant galaxies provided strong evidence for the expansion of the universe.

The Hubble Constant is a measure of the expansion rate of the universe.

Current observations suggest that the universe is flat, meaning that parallel lines remain parallel and the angles of a triangle add up to 180 degrees.

The cosmic microwave background is the leftover radiation from the Big Bang, providing evidence for the theory.

The fate of the universe is still uncertain and depends on various factors, including the amount and type of dark energy.

Based on various observations and measurements, the age of the universe is estimated to be around 13.8 billion years.

Supernovae, particularly Type Ia supernovae, are used as standard candles to measure distances and study the expansion of the universe.

Redshift is the phenomenon where the light from distant objects appears shifted towards longer wavelengths, resulting in a redder color.

In general, the farther an object is from us, the greater its redshift, indicating that the universe is expanding.

Dark matter is believed to contribute to the gravitational force that holds galaxies together and influences the expansion of the universe.

The cosmic microwave background is crucial for studying the expansion of the universe as it provides evidence for the Big Bang Theory, allows us to measure the age of the universe, and helps determine its shape.

Supernovae, particularly Type Ia supernovae, are used as standard candles to measure distances and study the expansion rate of the universe.

Current observations suggest that the universe is expanding at an accelerating rate, driven by the mysterious force known as dark energy.