I'm a bit confused, when it says that Pluto is made from
rock and ice, does it mean that if the ice was melted it would turn to water,
or is it a different liquid? I didn't think water existed anywhere else than Earth?
LAURA, AGE 15, ABERDEEN
There is definitely water ice elsewhere in the Solar System, its
been found on the Moon, is believed to be on Mars too. Pluto is made up almost
entirely of ice. A mission is on its way there now to find out but will take many
years to arrive.
Why is the temperature of Pluto
higher than the temperature of Neptune, even though it is furthest from the sun?
SASHA, AGE 13, LONDON
On average, the temperature on Pluto is -229 degrees, but on Neptune it is
-200 degrees. However, Pluto has a very elliptical orbit which means that on occasions
it's nearer to the Sun than Neptune and so it warms up a small amount.
you tell me why some scientists think that Pluto is not a planet and some think
that it is?
REBECCA, AGE 13, PETERBOROUGH
In our Solar System we have major planets and minor planets. Both are basically
objects that orbit around the Sun.
The planets Mercury,
Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune are all much bigger than
any other objects in the Solar System and so are said to be major planets.
Pluto is so much smaller scientists can't agree on whether its like all the other
planets or like the smaller pieces of rock called minor planets.
websites I've been on say Uranus has got a ring around it as well as Saturn however
other sites say it hasn't. My sister is in year 6 at school and is making a model
of a solar system and I'm not sure if Uranus has a ring around it... please help
Uranus has got a ring around it, as has Jupiter, Saturn and Neptune. Saturn's
rings are by far the best though.
What kind of
atmosphere does Pluto have in general? I am doing a class project about this planet
and is very hard to find information on it. Can you please help?
Answer: Pluto is
normally the most distant planet from the Sun and at those great distances most
chemicals are in their ice form.
As Pluto gets close
to the Sun gasses called Nitrogen, Methane and Carbon monoxide melt evaporate
and form an atmosphere.
It's only short lived though,
as eventually Pluto moves further away from the Sun again and the gases freeze
back into ice.
How do Uranus' rings stay in
place? How did Uranus end up where it did in the solar system?
AGE 6, HOUSTON, TEXAS
rings of Uranus stay in place because of gravity. Gravity is the thing that holds
you and me on the Earth and keeps the Moon moving around us.
rings or Uranus are made up of thousands and thousands of tiny pieces of rock,
all like tiny little moons. Each one is held in place by gravity.
am doing a project on Pluto in school can you tell me how old is Pluto?
LUCY, AGE 8, BRECON POWYS
Pluto, like all the planets in the Solar System is
thought to be about 5 billion years old.
is the name of the planet after Pluto?
We still don't know if there are any large planets
beyond Pluto. We have found two smaller ones though; one
is called Quaoar and the other is called Sedna.
am doing a project about Uranus and I would like to know is it a good place to
ANON, AGE 17
Image of Pluto taken using a Hubble Space telescope
Answer: Uranus, the 7th
planet from the Sun is very much unlike the Earth.
we know, the Earth has got a solid surface that you and I can walk around on and
can build structures.
Uranus on the other hand is
made up almost entirely of gas and so has no such solid surface.
if we could find someway of living in the atmosphere of Uranus, its distance from
the Sun gives average daytime temperatures of only -200 degrees.
is not a good place to try and set-up a human colony.
Pluto made out of ice?
VERONICA, AGE 13
Pluto is made up of a mixture of rock and ice but because
it is so far away from us we don't know a great deal more about it.
big is Uranus?
Uranus is 50,000 km across at the equator.
would you design a biodome where people could live on Uranus? I already know that
you would need several good heaters to stay warm and not get sick, and that you
would need a large supply of big oxygen tanks. But I can't find out anything else!
Can you help me?
LINDSAY, AGE 11
Uranus is not a good place to try to live on. It is
made of gas so has no solid surface that you could put a biosphere on. The only
option would be to make something that could orbit around the planet, a bit like
the International Space Station.
What are Uranus
rings made of?
is not the only planet in the Solar System to have a ring system. Jupiter, Uranus
and Neptune have rings too.
All of the rings are
made up of millions and millions of pieces of rock and dust, some pieces no bigger
than a few centimetres across, all moving around the planet, just like our Moon
moves around us.
I am doing a project on Pluto
and I already have a lot of information, but what I am struggling in though is
the small but yet interesting facts.
you please help me getting some small but really neat facts. Thank you!
ANGIE, AGE 11
idea to do school project about Pluto. How about these facts to get you started:
If you could travel as fast as light (300,000 km per second) it would take you
5.5 hours go get to Pluto from the Earth.
has one moon called Charon which is over half the size of Pluto.
scientists study Pluto any more from Earth or do they have to send something up
LISA, AGE 13
Pluto is the most distant planet in the Solar System
for most of the time but is also the smallest of all the planets.
it is so far away and so small it makes studying it from Earth really hard. The
attached picture shows the best picture taken from near the Earth using the Hubble
Scientists will not be able to
do much more research from Earth because it is so hard to see Pluto in any detail
so will have to wait until the New Horizons space mission which is due for launch
in January 2006 and will arrive in July 2015.
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