Astronomy Final exam review vocab

Front

Parameters of Olber's Paradox:

Back

Infinite, Static, Timeless.

Front

Argument that the night sky's darkness contradicts an infinite, eternal universe.

Back

Olber's paradox

Front

Average density needed for the Universe to stop expanding after infinite time; a Universe with this density is flat.

Back

critical density

Front

Extra term by Einstein in static universe equations.

Back

Cosmological constant

Front

Molecules made of antiprotons, antineutrons, and positrons.

Back

Antimatter

Front

Electromagnetic radiation remnant from the early universe in Big Bang cosmology.

Back

Cosmic microwave background (CMB)

Front

A theoretical passage through space-time that creates shortcuts for long journeys across the universe.

Back

Wormhole

Front

Theory of exponential expansion of space in the early universe.

Back

Cosmic inflation

Front

Primary structure of living organisms: hydrogen, carbon, nitrogen, oxygen.

Back

Amino acids

Front

Second level of complexity in living things, providing structure.

Back

Proteins