our solar system is one of over 500
known solar systems in the entire Milky
Way galaxy the solar system came into
being about 4.5 billion years ago when a
cloud of interstellar gas and dust
collapsed resulting in a solar nebula a
swirling disk of material that collided
to form the solar system the solar
system is located in the Milky Way’s
Orion star cluster only 15% of stars in
the galaxy host planetary systems and
one of those stars is our own Sun
revolving around the Sun are eight
planets the planets are divided into two
categories based on their composition
terrestrial and Jovian terrestrial
planets including Mercury Venus Earth
and Mars are primarily made of rocky
material their surfaces are solid they
don’t have ring systems they have very
few or no moons and they are relatively
small the smallest and closest to the
Sun is mercury which has the shortest
orbit in the solar system at about 3
earth months
Venus is the hottest planet with
temperatures of up to 867 degrees
Fahrenheit
due to an atmosphere of carbon dioxide
and extensive lava flows next to this
world of fire is a world of water earth
the water systems on this planet help
create the only known environment in the
universe capable of sustaining life the
last of the terrestrial planets Mars
might have also supported life about 3.7
billion years ago when the planet had a
watery surface and moist atmosphere
beyond the four terrestrial planets of
the inner solar system lie the jovian
planets of the outer solar system the
jovian planets include gas giants
Jupiter and Saturn and ice giants Uranus
and Neptune the gas giants are
predominantly made of helium and
hydrogen and the ice giants also contain
rock ice and a liquid mixture of water
methane and ammonia all four jovian
planets have multiple moons sport ring
systems have no solid surface and are
immense the largest Jovian is also the
largest planet in the solar system
Jupiter nearby is Saturn the solar
system’s second largest planet its
signature rings are wide enough to fit
between earth and the moon
but are barely a kilometer thick past
Saturn are the ice giants Uranus and
Neptune the slightly bigger of these ice
giants Uranus is famous for rotating on
its side next year anus is Neptune the
outermost planet in the solar system and
also one of the coldest orbiting the
terrestrial planets is the asteroid belt
a flat disc of rocky objects full of
remnants from the solar system’s
formation from microscopic dust
particles to the largest known object
the dwarf planet Ceres
another disk of space debris lies much
further out and orbits the jovian
planets the icy Kuiper belt apart from
asteroids the Kuiper belt is also home
to dwarf planets such as Pluto and is
the birthplace of many comets
beyond the Kuiper belt is the Oort cloud
a vast spherical collection of icy
debris it is considered the edge of the
solar system since that is where the
gravitational and physical influences of
the Sun end our solar system’s
particular configuration of planets and
other celestial objects all revolving
around a life-giving star make it a
special place to call home
[Music]
[Music]
known solar systems in the entire Milky
Way galaxy the solar system came into
being about 4.5 billion years ago when a
cloud of interstellar gas and dust
collapsed resulting in a solar nebula a
swirling disk of material that collided
to form the solar system the solar
system is located in the Milky Way’s
Orion star cluster only 15% of stars in
the galaxy host planetary systems and
one of those stars is our own Sun
revolving around the Sun are eight
planets the planets are divided into two
categories based on their composition
terrestrial and Jovian terrestrial
planets including Mercury Venus Earth
and Mars are primarily made of rocky
material their surfaces are solid they
don’t have ring systems they have very
few or no moons and they are relatively
small the smallest and closest to the
Sun is mercury which has the shortest
orbit in the solar system at about 3
earth months
Venus is the hottest planet with
temperatures of up to 867 degrees
Fahrenheit
due to an atmosphere of carbon dioxide
and extensive lava flows next to this
world of fire is a world of water earth
the water systems on this planet help
create the only known environment in the
universe capable of sustaining life the
last of the terrestrial planets Mars
might have also supported life about 3.7
billion years ago when the planet had a
watery surface and moist atmosphere
beyond the four terrestrial planets of
the inner solar system lie the jovian
planets of the outer solar system the
jovian planets include gas giants
Jupiter and Saturn and ice giants Uranus
and Neptune the gas giants are
predominantly made of helium and
hydrogen and the ice giants also contain
rock ice and a liquid mixture of water
methane and ammonia all four jovian
planets have multiple moons sport ring
systems have no solid surface and are
immense the largest Jovian is also the
largest planet in the solar system
Jupiter nearby is Saturn the solar
system’s second largest planet its
signature rings are wide enough to fit
between earth and the moon
but are barely a kilometer thick past
Saturn are the ice giants Uranus and
Neptune the slightly bigger of these ice
giants Uranus is famous for rotating on
its side next year anus is Neptune the
outermost planet in the solar system and
also one of the coldest orbiting the
terrestrial planets is the asteroid belt
a flat disc of rocky objects full of
remnants from the solar system’s
formation from microscopic dust
particles to the largest known object
the dwarf planet Ceres
another disk of space debris lies much
further out and orbits the jovian
planets the icy Kuiper belt apart from
asteroids the Kuiper belt is also home
to dwarf planets such as Pluto and is
the birthplace of many comets
beyond the Kuiper belt is the Oort cloud
a vast spherical collection of icy
debris it is considered the edge of the
solar system since that is where the
gravitational and physical influences of
the Sun end our solar system’s
particular configuration of planets and
other celestial objects all revolving
around a life-giving star make it a
special place to call home
[Music]
[Music]
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