1. Satellites and Galaxies The Earth’s Moon

2. Latin name for the moon - Luna  The Moon has a long association with insanity and irrationality; the words lunacy and lunatic (popular shortening loony) are derived from the Latin name for the Moon, Luna  The Moon has been the subject of many works of art and literature and the inspiration for countless others.  The Moon plays an important role in Islam; the Islamic calendar is strictly lunar, and in many Muslim countries the months are determined by the visual sighting of the hilal, or earliest crescent moon, over the horizon.Islamic calendarhilal

3. Moon – The near side

4. Moon – The far side - Why do we see only the near side of the moon?

5. Basic facts on the Moon  Earth's only natural satellite – revolves around a planetnatural satellite  It is the second-brightest regularly visible celestial object in Earth's sky (after the Sun)celestial object  4.527 billion years ago.  Although not the largest natural satellite in the Solar System, among the satellites of major planets it is the largest relative to the size of the object it orbits.  Most popular theory: Moon formed from the debris left over after a giant impact between Earth and a Mars-sized body called Theia.giant impactMars Theia  Moon's gravitational influence produces the ocean tides and the slight lengthening of the day

6.  The moon has no atmosphere  Dotted with impact-craters  Compared to earth has a weak pull of gravity  Mass = 7.3477×1022 kg  Perigee – when the moon is near the earth  Apogee – when the moon is far from earth  The Soviet Union's Luna programme was the first to reach the Moon with unmanned spacecraft in 1959;  The Moon makes a complete orbit around Earth with respect to the fixed stars about once every 27.3 days (28 days)

7. Soviet Lunokhod moonrover Soviet missions :First direct exploration: 1959–1976

8. U.S.A – Neil Armstrong

9. Sea (Maria) of Tranquility

10. Crater – caused by the impact of the an asteroid

11. Crater on Earth - Barringer

12. Found in Yucatan Peninsula

13. Layers of the Moon

14. Volcanoes in the Moon

15. Lunar Eclipse  A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow). This can occur only when the Sun, Earth, and Moon are aligned (in "syzygy") exactly, or very closely so, with the Earth in the middle.MoonEarthumbrasyzygy

16. Lunar Eclipse

17. Lunar eclipse compared with Solar eclipse

18. The moon on a Lunar Eclipse – reddish tinge

19. Galaxy  A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas and dust, and dark matter. The word galaxy is derived from the Greek galaxias (γαλαξίας)  literally "milky", a reference to the Milky Way  There are approximately 170 billion (1.7 × 10 11 ) galaxies in the observable universe.  Ultraviolet and X-ray telescopes

20. A typical Galaxy

21. A spiral barbed galaxy

22. Types of Galaxies – Hubble classification  Galaxies come in three main types: ellipticals, spirals, and irregulars. (spiral barbed)

23. An example of a spiral galaxy – pinwheel galaxy

24. Interacting Galaxies

25.  There is only one corner in the universe that you can improve and that is yourself!