DW test

Big Bang

A well-supported scientific explanation of the origin of the universe, marked by an initial singularity.

Cosmic Microwave Background Radiation (CMBR)

The residual heat from the Big Bang, providing a snapshot of the universe approximately 380,000 years after its birth.

Dark Energy

A mysterious form of energy that accelerates the expansion of the universe.

Inflation

A rapid expansion of the universe that occurred faster than the speed of light, within the first 10⁻³⁵ seconds after the Big Bang.

Doppler Effect

The change in frequency or wavelength of light from a source moving away, resulting in redshift.

Spectroscopy

The study of light to analyze and determine the composition and movement of celestial objects.

Quarks

The fundamental building blocks of protons and neutrons.

Dark Matter

An invisible mass that does not emit light or energy, influencing galaxy motion.

Three Extreme Characteristics of Early Universe

Extremely hot, dense, and small.

Hydrogen and Helium

The first atoms formed approximately three minutes after the Big Bang.

Cepheid Variables

Pulsating stars used as cosmic yardsticks to measure distances in the universe.

Parallax Method

A technique for measuring distances to nearby stars based on the shift in Earth’s orbit.

Hubble Deep Field

An image captured by the Hubble Telescope showing galaxies billions of years old.

Telescopes

Instruments such as Hubble and JWST used to observe distant galaxies and cosmic phenomena.

Particle Accelerators

Devices that simulate conditions of the early universe by colliding particles at high speeds.

Electromagnetism

A fundamental force that governs the behavior of charged particles and light.

Strong Force

The force that binds protons and neutrons together in atomic nuclei.

Weak Force

The force responsible for radioactive decay.

Time Dilation

The difference in the elapsed time as measured by two observers due to relative velocities.