Transcript Amazing space

Space
SPACE FACTS!
We have eight planets in our Solar System. However, outside of our
Solar System there are thousands of other planets. The extra-solar
planets or exo-planets are in orbit around another star. So far we have
almost had 1800 confirmed new worlds, with another 3000 awaiting
confirmation. Astronomers are looking to a star’s goldilocks zone for
planets that may be habitable, just like the Earth. The majority of
planets discovered so far are hot gas We have eight planets in our Solar
System. However, outside of our Solar System there are thousands of
other planets.
Even though Mercury is the closest planet to the Sun, it is not actually
the hottest. Mercury does not have any atmosphere meaning that this
planet is only hot in the daytime when it is directly facing the Sun. The
temperatures can rise to 425°C but at night the planet’s temperature
can drop down to a freezing -180°C. Venus is the hottest planet. Its
thick clouds trap the Sun’s heat causing Venus to be a sizzling 500°C all
of the time!
AMAZING SPACE
•The Sun is over 300000 times larger than earth.
•Venus is the hottest planet in our solar system with a surface
temperature of over 450 degrees Celsius.
•Many scientists believe that an asteroid impact caused the extinction
of the dinosaurs around 65 million years ago.
•The Solar System formed around 4.6 billion years ago..
•The Moon appears to have more craters and scars than Earth because
it has a lot less natural activity going on, the Earth is constantly
reforming its surface through earthquakes, erosion, rain, wind and
plants growing on the surface, while the moon has very little weather
to alter its appearance.
•Saturn isn't the only ringed planet, other gas giants such as Jupiter,
Uranus and Neptune also have rings, they are just less obvious.
•Footprints and tyre tracks left behind by astronauts on the moon will
stay there forever as there is no wind to blow them away.
•In 2006, astronomers changed the definition of a planet. This means
that Pluto is now referred to as a dwarf planet.
•Because of lower gravity, a person who weighs 200 pounds on earth
would only weigh 76 pounds on the surface of Mars.
•The only planet that rotates on its side like a barrel is Uranus. The only
planet that spins backwards relative to the others is Venus.
•Some of the fastest meteoroids can travel through the solar system at
a speed of around 42 kilometres per second (26 miles per second).
•The first man made object sent into space was in 1957 when the
Russian satellite named Sputnik was launched.
•Jupiter's 4 biggest moons are named Europa, Ganymede, Calisto. It is
because of the Sun & Moons gravity that we have high & low tides.
AMAZING
PLANET FACTS
There are facts about Saturn, Pluto, Mercury, Uranus, Venus,
Mars, Jupiter and Neptune.
I got all the facts from sciencekids.co.nz just in case you wanted to
know.
PLUTO
•Pluto was the smallest and furthest planet from the Sun in our
solar system, now it is not even officially recognized as a planet!
•In 2006 Pluto was demoted to the status of dwarf planet.
•Because it is so far away from the sun it is very cold with
temperatures ranging from -235 Degrees Celsius to -210
Degrees Celsius.
•Pluto consists of rock with a very thick coating of ice.
•The atmosphere of Pluto consists of nitrogen with some carbon
monoxide and methane.
SATURN
•Saturn is the second largest planet in our solar system and is another
gas giant.
•Saturn has a small rocky core covered with liquid gas.
•It is surrounded by a system of rings that stretch out into space for
thousands of kilometres.
•The rings are made up of millions of ice crystals, some as big as houses
and others as small as specks of dust.
•Saturn is very light as it is made up of more hydrogen than helium so it
is less dense. If we could fit Saturn into a bathtub it would float (but
that would have to be one big bathtub!)
•Like Jupiter, Saturn has many moons which surround it.
•Saturn is not a peaceful planet. Storm winds race around the
atmosphere at 800kmp/h.
•Saturn has a very strong magnetic field which traps energy particles
resulting in high levels of radiation.
URANUS
•Uranus was the first planet discovered by telescope.
•Since Uranus takes 84 Earth years to go around the sun,
this means that each of its poles is in daylight for 42 years
and in darkness for the next 42.
•Uranus’s atmosphere is mostly hydrogen but it also
contains large amounts of a gas called methane. Methane
absorbs red light and scatters blue light so a blue-green
methane haze hides the interior of the planet from view.
•Uranus hides its interior but scientists guess that under
the hydrogen-methane atmosphere is a hot, slushy ocean
of water, ammonia and methane thousands of miles deep
wrapped around a rocky core.
MERCURY
•The surface of Mercury is very similar to our moon. It has a very barren,
rocky surface covered with many craters.
•Being so close to the Sun, the daytime temperature on Mercury is scorching reaching over 400 Degrees Celsius.
•At night however, without an atmosphere to hold the heat in, the
temperatures plummet, dropping to -180 Degrees Celsius.
•Mercury has a very low surface gravity.
•Mercury has no atmosphere which means there is no wind or weather to
speak of.
•There is also no water on the surface of Mercury, it is possible however that
there could be water underneath the surface.
•Likewise, there is no air on the surface but it could be trapped underneath.
VENUS
•The atmosphere of Venus made up mainly of carbon dioxide.
•Its size is slightly smaller than Earth.
•It also features gravity similar to that of Earth.
•Venus is surrounded by clouds consisting of mercury, ferric chloride
hydrocarbons and sulphuric acid. These clouds create the most corrosive acid
rain found anywhere in our solar system.
•The clouds are so thick that little light even reaches the surface. The light
that does reach the surface is converted to heat and can not escape the
atmosphere making Venus the hottest planet at around 500 Degrees Celsius.
•The surface of Venus is often described as a "stormy desert" full of many
craters and very active volcanoes.
•The surface is also likened to molten lead.
•Venus features no liquid water.
MARS
•Mars is nicknamed the red planet because it is covered with rust-like dust.
Even the atmosphere is a pinkish red, colored by tiny particles of dust
thrown up from the surface.
•Mars experiences violent dust storms which continually change its surface.
•Mars has many massive volcanoes and is home to Olympus Mons, the
largest volcano in our solar system, it stands 21km high and is 600km across
the base.
•Mars has a very thin atmosphere made mostly of carbon dioxide (Co2). It is
not thick enough to trap the sun's heat like Venus, so the planet is very cold.
Temperatures range from -120 Degrees Celsius on winter nights to 25
Degrees Celsius in the summer.
•Mars has many channels, plains and canyons on the surface which could
have been caused by water erosion in the past.
•Mars has very weak gravity which cannot hold onto the atmosphere well.
•The polar ice caps consist of frozen Co2 (dry ice) which lies over a layer of
ice.
JUPITER
•Jupiter is the largest planet in our Solar system. It is so big that more than 1300
Earths could fit inside it.
•Thick, colourful clouds of deadly poisonous gases surround Jupiter. The quick
spinning of the planet whips up the atmosphere, creating the bands around the
planet.
•If you were to descend into Jupiter, the thin, cold atmosphere becomes thicker
and hotter, gradually turning into a thick, dark fog. In the blackness about
1000km down the pressure squeezes the atmosphere so hard that it becomes
like liquid.
•At the centre of Jupiter is a rocky core, slightly bigger than Earth but weighing
about 20 times more.
•Surrounding the core is an ocean of liquid hydrogen, about 1,000 kilometres
deep.
•Jupiter has many storms raging on the surface, most notably the big red spot
which is the largest hurricane in our Solar System. It's been raging for over three
hundred years.
•Jupiter has a very strong magnetic field, you would weigh two and a half times
as much as you would on Earth.
•Jupiter has many moons circling around it. Four of these moons are bigger than
Pluto.
NEPTUNE
•Neptune is a large planet, nearly four times the size of Earth.
•Neptune suffers the most violent weather in our Solar System.
•Storms have been spotted swirling around its surface and freezing winds
that blow about ten times faster than hurricanes on Earth make it the
windiest planet.
•Neptune is a large, water planet with a blue hydrogen-methane atmosphere
and feint rings.
•Neptune is covered in thin wispy white clouds which stretch out around the
planet.
BEAUTIFUL SPACE