hi my name is Kaeleigh and welcome to the solar system do you know where you live
of course you do you know the street and the town the state or province and the
country you know you live on earth did you know the earth is just a tiny part
of a large solar system in this video you'll become an expert on our solar
system you'll learn about the planets in our solar system
our Sun and Moon asteroid belts dwarf planets and other objects get ready to
launch into space
do you love to look at the sky scientists who study objects in the sky
and in outer space are called astronomers astronomers love
to study our solar system because it is where our earth is located it is like
our neighborhood in the bigger Milky Way galaxy astronomers use special tools
like telescopes computers satellites and space probes to view and measure things
in outer space telescopes help astronomers see things that are very far
away like zooming in on a camera but a lot more computers help them measure and
keep track of the information they find satellites and space probes our machines
astronomers send into outer space satellites stay close to our planet in
orbit earth while space probes travel long distances to study planets
asteroids and other objects in our solar system they both have computers
telescopes and other devices on them to help astronomers see into outer space
even more clearly than they do here on earth our solar system is made up of our
Sun in the center planets that circle or orbit the Sun and a few other things
we'll talk about in a bit first let's get to know some amazing facts about one
hot topic our Sun we say the planet moon asteroids and other objects that orbit
our Sun are in a solar system because the word Solar means Sun we are a system
of objects around our Sun our Sun is a gigantic ball of hot gases that all the
planets asteroids and other objects orbit around and is at the centre of our
solar system it is so huge it has tremendous energy and gravity gravity
the same force that keeps you and I on earth without flying off into space is
what keeps planets close to the Sun planets circle around or orbit our Sun
there are at least eight planets and putting earth that currently orbit the
Sun here are the planets an order from the closest to the farthest from our Sun
Mercury Venus Earth Mars Jupiter Saturn Uranus and Neptune there is one more
Pluto but that we'll discuss in a bit astronomers sort of argue about Pluto
there are a lot of neat ways to remember them in order but I like to use this
sentence my very educated mother just served us noodles each first
letter of the words and the sentence are the first letters of the planets in
order from our Sun there are more planets and moons in our solar system
asteroids are chunks of rock or metal they do not have their own gravity and
do not rotate they're usually not perfectly round and have a rough or
bumpy shape comets are composed of frozen gases and ice dust particles and
rocky materials are embedded or stuck in the ice comets travel around our Sun in
an orbit the closer comet gets to our Sun the sun's heat melts some of the ice
creating a beautiful glowing behind the comet this tail always points away from
the Sun comets are amazing to see and you are lucky if you get to see one from
Earth in your lifetime dwarf planets are made up of rocks metals or different
types of ice they are too small to be considered a regular planet and too big
to be an asteroid they do have their own gravity and can rotate however that
gravity isn't strong enough to keep other objects in orbit around it
they are usually round or oval in shape astronomers believe there may be as many
as 200 dwarf planets in our solar system waiting to be discovered in between the
Earth and Mars lies the asteroid belt the asteroid belt is a collection of
asteroids that have grouped together in a strip shaped orbit around our Sun the
largest one of these is an object astronomers have
named Ceres Ceres was originally thought to be an asteroid but is now classified
as a dwarf planet the Kuiper belt is a large asteroid belt that is located
between Neptune and the furthest reaches of our solar system it is much larger
than the asteroid belt that is between Mars and Jupiter
astronomers believe many comets come from Kuiper belt and that is also home
to many undiscovered dwarf planets Pluto Eris Makemake are three dwarf planets
that are near or in the Kuiper belt before 2006 Pluto was thought to be a
regular planet however astronomers and other scientists
now know it's gravity isn't strong enough to be considered a planet Eris
and Makemake are two other dwarf planets currently being studied by astronomers
that wraps it up for our tour of our solar system I hope you enjoyed learning
about our Sun planets and all the other wondrous objects in it make sure you
check out our other space-tastic science videos until next
time remember to always be clever