On the edge of our solar system, there has been a so called
planet discovered. Uranus is affected by something’s gravity Neptune was not
the factor. A man named Rodney Gomes has
done computer simulations and came up with planet x. It is said to be 4 times
the size of Jupiter. Since there is no physical evidence of it, it has to be
knocked as a hoax for now, but is very promising. Some scientist have done
their own experiments and have found the description of Planet X very closely
related to Uranus’ problems.
Spacebook
This is an educational blog with facts and articles about the solar system and other facts about our universe.
Saturday, November 16, 2013
Sunday, November 10, 2013
Neptune
Neptune is the last official planet in our solar
system. It is blue just like Uranus. When Neptune was first discovered, they
did not see it, they mathematically figured
it out. When scientists distinguished that something was interfering with Uranus’s
orbit pattern, they had called the interferer Neptune, then saw it with a
telescope. Its core is made of rock and is about as big as the Earth. It has,
not rings but arcs because they are incomplete arcs around Neptune. Its day is
16 hours, but a year is 165 earth years. Its atmosphere is made of Hydrogen and
Helium. Its winds can blow up to 1240 miles an hour there. It has 13 moons
orbiting it. Neptune is named after the sea god because of its sea blue color.
Uranus
Uranus is the 7th planet in our solar
system. It is nowhere near as massive a Jupiter or Saturn, but it is a great
deal larger than any of the inner planets. It is most known for its faint
vertical rings. It rotates vertically, up and down other than normal planets
that rotate horizontally. Scientist theorizes that Uranus was knocked over into
a vertical rotation. It is a bluish color and is made of mostly ice. The only
spacecraft to visit Uranus was Voyager 2. At that time, Uranus’ South Pole was
pointed almost directly to the sun. Its day is 17 hours, but its year is 84
Earth years. Its atmosphere is made up of hydrogen and helium. It has 27 moons,
all of which are named after Shakespeare’s and Alexander Pope’s characters. It is
named after the roman sky god.
Saturn
Saturn is the 5th planet from the sun. It
is most distinguishable by its golden rings. These rings are made of dust,
rocks, and ice. Saturn is also distinguishable by it very low density of
0.69g/cm3. If you could find a bathtub as big a Saturn and filled it
with water, then Saturn would float! It is the same problem as Jupiter; it is
not very dense, but very big in volume. You could fit roughly 750 Earths inside
of it. Saturn has more than 60 satellites orbiting it. You wouldn’t know if it
was day or night because there would always be a moon in sight. Saturn has one
of the fastest days, only 11 hours. It year is a lot slower though, it would
take 29 Earth years for Saturn to revolve around the sun. It has a core of rock
about the size of Earth and the rest is hydrogen and helium. Saturn is named
after the roman titan Saturn and most of its moons are named after titans also.
Saturn is a great planet that many like to study.
Jupiter
Jupiter is the first planet in the four outer
planets. It is the largest body in our solar system, except for our sun, which
is 1000 times bigger than Jupiter, making it look very puny. It is often called
the striped planet because of the bands on the surface. It has 67 moons
orbiting it. Many are thought to be asteroids stolen from the belt. Jupiter is
made mostly of Hydrogen and Helium, but may have a rocky core. It is very large
in volume, but is not very dense. It can hold 1231 earths in it, but Earth is a
lot denser. Jupiter is only 1.33g/cm3, but Earth is 5.52g/cm3.
Jupiter’s most distinguishable aspect is the Red Spot’s on its surface. Imagine
a storm about the size of Earth, which is what the Red Spots are. They are
massive storms on the surface of planet Jupiter. Since Jupiter is the largest
planet in the Solar System, they named it after the king of roman gods,
Jupiter.
Asteroid Belt
The asteroid belt is a belt of asteroids and
meteoroids that are in between the inner/terrestrial planets and the
outer/gaseous planets. Jupiter’s gravity is what keeps all of these rocks from
crashing into the inner planets. The asteroid belt contains trillions of
asteroids, some of which are 200 miles long! They are made by the leftover rock
and dust that was just lying around after the planets were made. We have
launched plenty of spacecraft to observe asteroids. The NASA’s Galileo launched
in 1991 was the first craft to take close-up pictures of asteroids and to
discover a smaller asteroid serving as a moon to a larger asteroid. In 2001,
the NEAR spacecraft landed on the asteroid Eros. Japanese Hayabusa, meaning
Peregrine Falcon, was the first to land and take off from an asteroid. The
rocks are under study in a lab in Japan. Humans also have seen a business
opportunity from the metal rich asteroids. Planetary Resources said that they
would send a mission to extract metal and water from near-Earth asteroids. Like
our planets, individual asteroids are peculiar and intriguing to man.
·
Most Massive: 4 Vesta
·
Biggest Diameter: 2 Pallas
·
Longest day: 846 Lipperta-1641 hours
·
Shortest day: 2010 JL88-24.5
seconds!
·
Orbits backwards: Dioretsa (What’s
asteroid backwards!)
·
First discovered asteroid with a moon:
Asteroid-243 Ida. Moon- 243 Ida I Dactyl
Mars
Mars is the last part of the inner planets, or
terrestrial planets. It is about half the size of Earth. It has two moons,
Phobos and Deimos. Scientists believe that Phobos would crash into Mars in
time. Mar’s surface is very red. It is red because its soil is very rich with
iron and the air has rusted it greatly over the years. The rovers that have
been to mars are Mars 2 and 3, Sojourner, Spirit, Opportunity, and Curiosity.
The reason why we can get many rovers there are because it has a very thin
atmosphere of CO2. If it had an atmosphere similar to Earth, everything would
burn up before it reaches the surface. Mars
rover Opportunity has discovered water on mar’s surface in the form of two
giant polar ice caps. It is named after the Roman god of war because of its
blood-red color. Mars is a planet that we know much about, but still has some
unknown information in it.
Earth
Earth
is the planet that humans and many other animals call home. It is the only
known planet that holds life. The earth’s atmosphere consists of 78% nitrogen,
21% oxygen, 0.9% argon, and 0.03% carbon. The atmosphere is one thing that lets
life live on earth. Without the atmosphere, huge meteorites would be a lot more
common. The earth is exactly 1 AU from the sun. It has only one moon orbiting
it. The earth is 4.6 billion years old. The earth is 70% water and 30% land.
Earth is one of the inner planets and is rocky. Earth is the only planet that
does not have a name from a roman god. Earth is an intriguing planet and the
planet we live on.
Venus
Venus is the second planet in our solar system. It
is a reddish color and is very hot, temperature averaging at 836 degrees
Fahrenheit. One day on Venus is 118 Earth days. Although, their year is 224
Earth days, talk about a year that goes by quick! It is 0.72 Au away from the
sun. Its mass is about 0.815s of the Earths mass. Venus and Earth are always
called twins because they are similar in size and density. Its atmosphere is
mostly carbon dioxide (CO2), which makes its surface pressure a lot harder, 90%
more than the Earths pressure! Venus is extremely dry because of the heat on
the planet. Most probes that go there are destroyed within an hour. One reason
why it is hot is because it’s so close to the sun, but is also more prone to it
radiation because its magnetic field is so weak. Its magnetic field is only
0.000015 of Earth’s magnetic field. Venus was named after the roman god of
beauty. Venus is an interesting planet and I want to learn more about.
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