THEORIES Flashcards
- Is a cosmological model that explains how the universe began.
- Not a literal explosion of something but an expansion.
BIGBANG THEORY
BIGBANG THEORY Suggests that the universe started its expansion about
13.8 billion years ago
- The bread represents the universe
- The raisins are galaxies
The raisins or galaxies, are
- The raisins are galaxies
not expanding
- First proponent of the theory.
- Suggested the idea of the expanding universe.
Georges Henri Joseph Edouard Lemaitre
Discovered that microwaves with wavelengths of about 7 centimeters were present in space.
Arno Penzias and Robert Wilson
These waves were referred to as the CMB or the
Cosmic Microwave Background radiation.
Who established the Hubbles Law
Edwin Powell Hubble
Hubbles Law provided an evidence that the universe was
not static but expanding.
M31 nebula or the Andromeda constellation now known as
Andromeda galaxy, nearest galaxy in the Milky way
a star that pulsates radially, brightening and dimming periodically.
Cepheid star
measure the distance of star from the Earth.
radial pulse
Occurs when electromagnetic waves shift to longer wavelengths.
Redshift
- An area predicted to be in the core of a black hole with very high temperature and density.
The intense heat resulted to the formation of matter and antimatter particles that were destroyed every time they collided with each other.
SINGULARITY
- A faint glow of light that filled the Universe with nearly uniform intensity.
Considered as the leftover heat from the Big Bang
Cosmic Microwave Background radiation
- The formation of elements such as, Hydrogen and Helium.
- Presence of these elements led to the formation of stars and galaxies.
Also formation of other cosmic bodies
- Presence of these elements led to the formation of stars and galaxies.
Nucleosynthesis
