Cosmology and Astrophysics

Give the name or equation for the described object or phenomena within the field of Cosmology or Astrophysics. Some questions may be a distance or equation, this should be answered with the correct name for this quation or distance.
Quiz by viktoraxel
Last updated: April 10, 2018
First submittedApril 10, 2018
Times taken83
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Distance between the Earth and the Sun
Astronomical Unit
The use of gravity to combine hydrogen and helium
Nuclear Fusion
When we look out in space, we look back in time - What is this due to?
Speed of Light
The concepts of time and three-dimensional space regarded as fused in a four-dimensional continuum.
A fermion that interacts only via the weak subatomic force and gravity.
A link of 2 separate points of spacetime
Radiation that permeates throughout the whole universe
Background radiation
Unit of length used to measure large distances to astronomical objects outside the Solar System.
What effect lets us know that the universe is expanding still at an increasing rate?
Doppler Effect
A difference in the elapsed time measured by two observers, either due to a velocity difference relative to each other, or by being differently situated relative to a gravitational field.
Time dilation
What caused Venus to become as inhospitable as it is today?
Mass–Energy Equivalence
How are supernovas able to be discovered before we are able to see them?
Level 20
Feb 28, 2021
I wrote microwave background radiation and it wasn't marked correct.