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Transcript of Space
AFTER THE UNIVERSE, WE GO INTO
THE GALACTIC CLUSTER...
...TO OUR MILKY WAY, WHICH CONTAINS BILLIONS OF STARS...
...and of course millions of solar systems...
...out of which one is our solar system..the
Solar System, located somewhere in the red
....Which contains 8 planets, asteroid belt, Oort cloud and of course, one star...the Sun
OUR SOLAR SYSTEM
The Sun is the nearest star. It provides light, warmth and solar energy. It is made of mostly Hydrogen and Helium, with small traces of Oxygen, Carbon and some other trace gasses.
The Sun's heat and light comes form nuclear reactions within its core. This is caused by the colliding of Hydrogen atoms. The energy created takes 300,000 years to reach the surface of the Sun, but only 8 minutes to get to Earth!
Mercury is named after the Roman messenger god
Diameter - 4,789 km
Surface temperature - -173 C (night) and 476 C ( day)
Venus is named after the Roman goddess of love and beauty
Diameter - 12,104km
Surface temperature - 467 C all year round
OUR REAL STAR...the sun
We live in the Solar System, all thestuff that travels around the Sun. This includes the 8 planets, 5 dwarf planets, moons, Asteroid Belt, Oort Cloud and comets.
The Sun, like every star, was born in a cloud of dust particles. These particles, while they circled the Sun these particles collided and stuck together to form planets, comets, the moons and dwarf planets. These planets sometimes collided forming the moons and forming asteroids that formed the asteroid belt. Asteroids also came form leftover particles during the formation of the Solar System.
All those thing ( planets, comets, etc.) rotate around the Sun in a path called an orbit. The Sun's gravity keeps all this stuff form flying of into space. That's why we're still here.
The Sun's surface is called a photosphere
The Sun's is a giant ball of gas
The Sun is responsible for our weather
The Sun's surface gives off so much heat, that any spacecraft that travels near will melt!
Mercury is the first planet from the Sun, and the smallest planet of Solar System.
Years on Mercury are short, but days are very long! About 75% of a Mercury year is a day!
Mercury, like all the Inner planets, is terrestrial, or is made up of mostly rock.
Venus is pretty much the Hell of the Solar System. Venus used to be very similar to Earth. If all the water and other liquids hadn't heated up and formed a crushing poisonous atmosphere, we could live on there! It is about the same size of Earth ( just a little smaller), and the nearest planet to our Earth.
Venus is also the hottest planet in our Solar System, and could look like the future of our planet if we keep on polluting and destroying our Earth.
It's name comes from an Anglo-Saxon ( they were similar to Vikings) word that means "land"
Diameter - 12,742 km
Surface temperature - 15 C ( average of a year)
Earth is our home, and is the only planet ( so far) that is found to support multi-cellular life. It is also the only planet where liquid water is guaranteed. t also has a moon, the Moon.
Earth is also the only planet to be colonized with intelligent beings ( that's us). Earth's life is said to come from a comet that was carrying micro-bacteria a billion years ago that crashed into Earth, also helping to create our Moon.
Named after the Roman god of war
Diameter - 6,779 km
Surface Temperature - (-55) C
Mars is also known as the red planet due to its distinct soil color, red. This color is caused because of the rusting of iron. The dust in the thin air makes the atmosphere look pink instead of blue.
It has two moons, Phobos and Deimos, which are both the commanders under the control of Mars ( the God). Phobos means fear, Deimos means terror.
There is actually a polar ice cap on the south side of Mars, which is made up of carbon and water ( H20).
The Asteroid belt contains all the asteroids of the Solar System, and some dwarf planets with it. These asteroids are actually left over chunks of dust, rock and ice that was left over during the formation of the Solar System.
OUTER PLANETS ( JOVIAN PLANETS)
Jupiter is named after the Roman leader of all the other gods.
Diameter - 139,822 km
Surface Temperature - (-145) C
Jupiter is the largest of all the planets, and the first Jovian planet form Earth, and where that term came form. Jupiter is made up of gas, gas which is so thick, it can crush any spacecrafts that goes within its atmosphere.
Jupiter has at least 63 known moons. But its name to fame is the Red Spot, a gigantic storm several 100 times the size of Earth that has been raging on for 400 years. The stripes on Jupiter are actually clouds of different gasses.
Saturn is named after the father of Jupiter, the Roman god of harvest.
Diameter - 116,464 km ( without rings)
Surface Temperature - (-168) C ( average)
Saturn is a gas giant, like Jupiter and the second largest planet in our Solar System. It also has the longest rings of all the planets in the Solar System, goingt o about 80,000 km wide. The rings are made up of ice, rock and dust, and chunks can be as big as a small car!
Uranus is named after Saturn's father, the Roman god of the sky
Diameter - 50,724 km
Surface Temperature - (-224)°C
Uranus is the 7th planet form the Sun, and has a methane and water atmosphere, which gives it its pale blue-greenish color.
Uranus actually rotates on its side, instead of sideways. It also has rings, and, like Saturn, are made out of dust, rock and ice, but are much smaller.
Named after the Roman god of the sea
Diameter - 49,244 km
Surface Temperature - (-218) C
Neptune is the farthest planet from our sun. The rich blue color of it is caused by the methane-rich ice clouds in its atmosphere.
The most detailed images of Neptune was from Voyager 2, which visited the plant in 1989. Neptune, like Jupiter, has a storm raging on it. Known as the Great Dark Spot, it's white in color and can be seen in the photo below.
OUR SOLAR SYSTEM
THE OORT CLOUD
The Oort cloud is a giant swarm of comets that spans half-way to our nearest star. Nobody has actually ever seen this "Oort cloud". Then how do we know its there?
Where do comets come from? This one question nagged Jan Oort, as comets have huge elliptical ( oval shaped) orbits that span farther than the limits of our Solar System, and they didn't orbit the Sun. Some comets come into the Solar System form the bottom, sometimes from the top, or from any random direction.
Jan Oort came to the conclusion that there is a giant reservoir of 10 billion to 1 trillion comets which rotation around the Sun takes about 1 million years or so.
The Oort cloud is said to be the remains of the outer-most dust particles during the formation of our Solar System.
NOW, FROM OUR HOME, EARTH, WE GO...
...TO OUR MILKY WAY
...just as one of the millions of Solar Systems that are out there...
...TO OUR SOLAR SYSTEM...
...TO OUR GALACTIC CLUSTER...
....just as one of the thousands of galaxies in it...
THERE IS A LOT OF IT OUT THERE
There's still more...