- The study time in relation to earth’s history is called ‘Geochronology’.
- The study of the origin and evolution of the universe is known as ‘Cosmology’.
- The study of celestial bodies and phenomena is known as ‘Astronomy’.
- The study of behavior of interstellar matter is called ‘Astrophysics’.
- A Greek philosopher and mathematician “Pythagoras” first used the term “COSMOS” for the order of the universe.
- An American astronomer “Edwin Hubble” first studied galaxies in detail. Based on shape, Edwin Hubble classified galaxies as Elliptical, Spiral and Barred Spiral.
- Wilkinson Microwave Anisotropy Probe (WMAP) is an Explorer Mission of NASA launched for the study and measurement of cosmology.
- Cosmology is the discipline that describes the large scale properties of the universe as a whole.
- In 1610, Galileo became the first person to look at Saturn through telescope.
- There is a supermassive black hole at the heart of every galaxy.