Our solar system consists of the Sun and eight planets orbiting it, along with their natural satellites like Earth's Moon. It also includes smaller objects like asteroids and comets. The Sun is at the center of the solar system and is by far the largest object, producing electromagnetic energy that sustains life on Earth. Our entire solar system orbits around the center of the Milky Way galaxy along with billions of other stars.

1. MERCURY
VENUS
EARTH
MARS
JUPITER
SATURN
NEPTUNE
SOLAR
SYSTEM
SUN MOON ASTEROID

2. Our solar system consists of an average star we call the Sun, the planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. It
includes: the satellites of the planets; numerous comets, asteroids, and
meteoroids; and the interplanetary medium. The Sun is the richest source of
electromagnetic energy (mostly in the form of heat and light) in the solar system.
The Sun's nearest known stellar neighbor is a red dwarf star called Proxima
Centauri, at a distance of 4.3 light years away. The whole solar system, together
with the local stars visible on a clear night, orbits the center of our home galaxy,
a spiral disk of 200 billion stars we call the Milky Way. The Milky Way has two
small galaxies orbiting it nearby, which are visible from the southern hemisphere.
They are called the Large Magellanic Cloud and the Small Magellanic Cloud. The
nearest large galaxy is the Andromeda Galaxy. It is a spiral galaxy like the Milky
Way but is 4 times as massive and is 2 million light years away. Our galaxy, one
of billions of galaxies known, is traveling through intergalactic space.

3. Our Solar System
Mercury
Venus
Earth
MarsJupiter
Uranus
Neptune
Saturn

4. Mercury
 Closest to the sun
 Smallest planet
 Rotates once every 59 earth days.
 One day on Mercury lasts 176 Earth days.
 Very dry, hot, and almost airless

5. Venus
Second closest planet to the sun
 Brightest celestial body besides the moon and sun.
 Cannot be seen in the middle of the night
 Can be observed in the east at sunrise
and the west at sunset

6. Earth
3rd from the sun
 5th largest planet in the solar system
 More than 4.5 billion years old
Has one natural satellite we call the moon.
 Oceans cover 70% of Earth’s surface

7. Mars
Fourth from the sun
Only planet whose surface can
be seen in detail from the Earth
Reddish in color, the atmosphere of
Mars is made of carbon dioxide

8. Jupiter
The Fifth planet from the sun
Largest planet in the solar system
Has at least 39 months

9. Saturn
Sixth planet from the sun
Has at least 31 moons
The surface on Saturn consists
of liquid and gas

10. Uranus
Seventh planet from the sun
1st planet discovered with a telescope
Atmosphere is a mixture of Hydrogen,
Helium, and methane
Does not have a solid surface

11. Neptune
8th and farthest planet from the sun
The atmosphere is mostly hydrogen and helium
Has 8 known moons

12. Moon
Bigger than Pluto
Only object in the Solar System visited by
humans.
A lunar month is 29.35 days,
1 new moon to the next.
The moon’s gravitational pull
on Earth is the main cause of
the ocean’s tide.

13. Sun
Located 93,000,000 miles from Earth
Closest star to Earth
At least 4.5 billion years old
Has a surface temperature of 10,000 degrees and
a center temperature of 27,000,000 degrees Fahrenheit.

14. Asteroids
The Asteroid Belt is the space between Mars and Jupiter
It contains irregularly shaped chunks of debris called
asteroids
Asteroids made of rock and metal. Mostly nickel and iron