Press "Enter" to skip to content

Solar System 101 | National Geographic


our solar system is one of over 500

our solar system is one of over 500 known solar systems in the entire Milky

known solar systems in the entire Milky

known solar systems in the entire Milky Way galaxy the solar system came into

Way galaxy the solar system came into

Way galaxy the solar system came into being about 4.5 billion years ago when a

being about 4.5 billion years ago when a

being about 4.5 billion years ago when a cloud of interstellar gas and dust

cloud of interstellar gas and dust

cloud of interstellar gas and dust collapsed resulting in a solar nebula a

collapsed resulting in a solar nebula a

collapsed resulting in a solar nebula a swirling disk of material that collided

swirling disk of material that collided

swirling disk of material that collided to form the solar system the solar

to form the solar system the solar

to form the solar system the solar system is located in the Milky Way’s

system is located in the Milky Way’s

system is located in the Milky Way’s Orion star cluster only 15% of stars in

Orion star cluster only 15% of stars in

Orion star cluster only 15% of stars in the galaxy host planetary systems and

the galaxy host planetary systems and

the galaxy host planetary systems and one of those stars is our own Sun

revolving around the Sun are eight

revolving around the Sun are eight planets the planets are divided into two

planets the planets are divided into two

planets the planets are divided into two categories based on their composition

categories based on their composition

categories based on their composition terrestrial and Jovian terrestrial

terrestrial and Jovian terrestrial

terrestrial and Jovian terrestrial planets including Mercury Venus Earth

planets including Mercury Venus Earth

planets including Mercury Venus Earth and Mars are primarily made of rocky

and Mars are primarily made of rocky

and Mars are primarily made of rocky material their surfaces are solid they

material their surfaces are solid they

material their surfaces are solid they don’t have ring systems they have very

don’t have ring systems they have very

don’t have ring systems they have very few or no moons and they are relatively

few or no moons and they are relatively

few or no moons and they are relatively small the smallest and closest to the

small the smallest and closest to the

small the smallest and closest to the Sun is mercury which has the shortest

Sun is mercury which has the shortest

Sun is mercury which has the shortest orbit in the solar system at about 3

orbit in the solar system at about 3

orbit in the solar system at about 3 earth months

earth months

earth months Venus is the hottest planet with

Venus is the hottest planet with

Venus is the hottest planet with temperatures of up to 867 degrees

temperatures of up to 867 degrees

temperatures of up to 867 degrees Fahrenheit

Fahrenheit

Fahrenheit due to an atmosphere of carbon dioxide

due to an atmosphere of carbon dioxide

due to an atmosphere of carbon dioxide and extensive lava flows next to this

and extensive lava flows next to this

and extensive lava flows next to this world of fire is a world of water earth

world of fire is a world of water earth

world of fire is a world of water earth the water systems on this planet help

the water systems on this planet help

the water systems on this planet help create the only known environment in the

create the only known environment in the

create the only known environment in the universe capable of sustaining life the

universe capable of sustaining life the

universe capable of sustaining life the last of the terrestrial planets Mars

last of the terrestrial planets Mars

last of the terrestrial planets Mars might have also supported life about 3.7

might have also supported life about 3.7

might have also supported life about 3.7 billion years ago when the planet had a

billion years ago when the planet had a

billion years ago when the planet had a watery surface and moist atmosphere

beyond the four terrestrial planets of

beyond the four terrestrial planets of the inner solar system lie the jovian

the inner solar system lie the jovian

the inner solar system lie the jovian planets of the outer solar system the

planets of the outer solar system the

planets of the outer solar system the jovian planets include gas giants

jovian planets include gas giants

jovian planets include gas giants Jupiter and Saturn and ice giants Uranus

Jupiter and Saturn and ice giants Uranus

Jupiter and Saturn and ice giants Uranus and Neptune the gas giants are

and Neptune the gas giants are

and Neptune the gas giants are predominantly made of helium and

predominantly made of helium and

predominantly made of helium and hydrogen and the ice giants also contain

hydrogen and the ice giants also contain

hydrogen and the ice giants also contain rock ice and a liquid mixture of water

rock ice and a liquid mixture of water

rock ice and a liquid mixture of water methane and ammonia all four jovian

methane and ammonia all four jovian

methane and ammonia all four jovian planets have multiple moons sport ring

planets have multiple moons sport ring

planets have multiple moons sport ring systems have no solid surface and are

systems have no solid surface and are

systems have no solid surface and are immense the largest Jovian is also the

immense the largest Jovian is also the

immense the largest Jovian is also the largest planet in the solar system

largest planet in the solar system

largest planet in the solar system Jupiter nearby is Saturn the solar

Jupiter nearby is Saturn the solar

Jupiter nearby is Saturn the solar system’s second largest planet its

system’s second largest planet its

system’s second largest planet its signature rings are wide enough to fit

signature rings are wide enough to fit

signature rings are wide enough to fit between earth and the moon

between earth and the moon

between earth and the moon but are barely a kilometer thick past

but are barely a kilometer thick past

but are barely a kilometer thick past Saturn are the ice giants Uranus and

Saturn are the ice giants Uranus and

Saturn are the ice giants Uranus and Neptune the slightly bigger of these ice

Neptune the slightly bigger of these ice

Neptune the slightly bigger of these ice giants Uranus is famous for rotating on

giants Uranus is famous for rotating on

giants Uranus is famous for rotating on its side next year anus is Neptune the

its side next year anus is Neptune the

its side next year anus is Neptune the outermost planet in the solar system and

outermost planet in the solar system and

outermost planet in the solar system and also one of the coldest orbiting the

also one of the coldest orbiting the

also one of the coldest orbiting the terrestrial planets is the asteroid belt

terrestrial planets is the asteroid belt

terrestrial planets is the asteroid belt a flat disc of rocky objects full of

a flat disc of rocky objects full of

a flat disc of rocky objects full of remnants from the solar system’s

remnants from the solar system’s

remnants from the solar system’s formation from microscopic dust

formation from microscopic dust

formation from microscopic dust particles to the largest known object

particles to the largest known object

particles to the largest known object the dwarf planet Ceres

the dwarf planet Ceres

the dwarf planet Ceres another disk of space debris lies much

another disk of space debris lies much

another disk of space debris lies much further out and orbits the jovian

further out and orbits the jovian

further out and orbits the jovian planets the icy Kuiper belt apart from

planets the icy Kuiper belt apart from

planets the icy Kuiper belt apart from asteroids the Kuiper belt is also home

asteroids the Kuiper belt is also home

asteroids the Kuiper belt is also home to dwarf planets such as Pluto and is

to dwarf planets such as Pluto and is

to dwarf planets such as Pluto and is the birthplace of many comets

the birthplace of many comets

the birthplace of many comets beyond the Kuiper belt is the Oort cloud

beyond the Kuiper belt is the Oort cloud

beyond the Kuiper belt is the Oort cloud a vast spherical collection of icy

a vast spherical collection of icy

a vast spherical collection of icy debris it is considered the edge of the

debris it is considered the edge of the

debris it is considered the edge of the solar system since that is where the

solar system since that is where the

solar system since that is where the gravitational and physical influences of

gravitational and physical influences of

gravitational and physical influences of the Sun end our solar system’s

the Sun end our solar system’s

the Sun end our solar system’s particular configuration of planets and

particular configuration of planets and

particular configuration of planets and other celestial objects all revolving

other celestial objects all revolving

other celestial objects all revolving around a life-giving star make it a

around a life-giving star make it a

around a life-giving star make it a special place to call home

”

Be First to Comment

Leave a Reply

Your email address will not be published. Required fields are marked *