Which Notable Objects are in the Constellation of Andromeda?
A brief description of the notable celestial objects located in the constellation of Andromeda.
18 Des 20201min
What is Meant by a Deep Sky Object?
A brief description of what is meant when astronomers refer to something as a deep sky object?
18 Des 202049s
What is an Asterism?
A brief description of how we define an asterism in the sky as distinct from a constellation.
16 Des 20201min
Why do We Study Astronomy?
A brief description of why we study the nature of the Universe. We are mainly interested in gaining knowledge about the universe for the sake of the knowledge itself.
16 Des 20201min
The Universe as a Time Machine
A brief description of how the finite speed of light can be used to our advantage - allowing us to look back in time to see the history of the Universe.
11 Des 20201min
How Old is the Universe, the Sun, and the Earth?
A brief description of how old the universe is as compared with the ages of the Sun, the Earth, and how long Homo Sapiens have lived on the Earth.
11 Des 20201min
What is a Light Year?
A brief description of a light year - a unit of distance based on how far light travels in one Earth year.
9 Des 20201min
What is Electromagnetic Radiation?
A brief description of electromagnetic radiation - that is to say light - and how its wavelength, frequency, and energy are related.
4 Des 20202min
