The moon is Earth's natural satellite that orbits our planet. It formed approximately 4.5 billion years ago from debris after a giant impact with Earth. While only one-fourth the size of Earth, the moon is the fifth largest moon in the solar system and has significant effects on our planet through its gravitational pull and influence on ocean tides. Some of the most notable events in our exploration of the moon include the first unmanned and manned landings by the Soviet and American space programs in the 1950s and 1960s.

1. Moon

2. Moon
The moon is the natural satellite of the
earth, visible (chiefly at night) by reflected
light from the sun
It is a large ball of rock that does not
change shape- it just looks as though it does

3. Formation of the moon
• The moon was formed ~4.5 billion years ago
• It is known as the giant-impact theory

4. Lunar Cycle

5. How Big is the Moon
The moon is a bit more than one-fourth (27 percent) the
size of Earth, a much smaller ratio (1:4) than any other
planets and their moons.
Earth's moon is the fifth largest moon in the solar
system.
The moon's surface area is about 14.6 million square
miles (38 million square kilometers), which is less than
the total surface area of the continent of Asia (17.2
million sq mi or 44.5 million sq km).

7. Lunar Eclipse
• Lunar eclipses occur when earth's
shadow blocks the sun's light, which
otherwise reflects off the moon.
• There are three types — total, partial and
penumbral — with the most dramatic
being a total lunar eclipse, in which
earth's shadow completely covers the
moon.

8. Some Facts
• The moon’s surface temperature changes every Moon-day
ranging from boiling hot to freezing cold depending on where
the sun is shining
• On the moon, there's no air to breathe, and no breeze; there is
a very, very thin layer of gases on the lunar surface that can
almost be called an atmosphere. Technically, it's considered
an exosphere

9. Some Facts (cont.)
• The Distance between the moon and the Earth is 384,400 km
• The pull of the earth’s gravity keeps the Moon in orbit
• The Moon’s surface gravity is about one-sixth of Earth’s
• The Moon's gravity pulls on the Earth’s oceans to produce
tides

10. Moon Landing
• The first human-made object to reach the surface
of the Moon was the Soviet Union's Luna 2 mission,
on 13 September 1959
• Apollo 11 was the first manned mission to land on
the Moon, on 20 July 1969
• Neil Armstrong is the first person to walk on the
moon; Buzz Aldrin follows 19 minutes later