A brief description of the notable celestial objects located in the constellation of Andromeda.

A brief description of what is meant when astronomers refer to something as a deep sky object?

A brief description of how we define an asterism in the sky as distinct from a constellation.

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.

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.

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.

A brief description of a light year - a unit of distance based on how far light travels in one Earth year.

A brief description of electromagnetic radiation - that is to say light - and how its wavelength, frequency, and energy are related.

A brief description of the term Hubble Flow in astronomy. The universe is expanding on the largest scales, and this large-scale expansion of the Universe is known as the Hubble Flow.

A brief description of Blackbody or Planck curves. In short, these curves tell us the brightness of stars of a certain temperature.