Posts Tagged ‘solar system’

Jupiter – The Big Gas Giant.

March 28, 2011

Jupiter is next in line, being the 5th planet from the Sun. But before we arrive at Jupiter we have to travel through a big asteroid belt. Sigh.
Only one of these asteroids, Vesta, is ever visible to the naked eye, and it’s not got the largest diameter! That would belong to Ceres, which is as much as 900 kilometers (560 miles) wide.

You’re VERY unlikely to get hit by an asteroid if you were to travel through an asteroid belt though…

Well that’ll do, they can get pretty boring when all the excitement of Jupiter awaits.


What a beast. He/She/It ‘s (Jupiter is named after the King of the Gods from Greek Mythology) 142 984 kilometers in diameter across the equator and 43128×1015 km3 in volume. (That’s 1321.3 Earths!) And if that’s not enough, he’s
2.5 times the mass of all the other planets in our solar system!

He’s got 63 moons! But only 4 of these are large enough to be commonly sighted.

Jupiter is primarily composed of hydrogen with a quarter of its mass being helium; it may also have a rocky core of heavier elements.

NASA are planning on sending out a spacecraft to orbit Jupiter in August 2011.
For more information:

Oo ‘ello, what have we here then?

Jupiter has a giant red spot, if you haven’t noticed already…

It’s basically a high pressure equivalent of a hurricane on Earth, it’s said to have been going for at least 300 years.

Jupiter orbits the sun at 13km per second.
It’s mean surface temperature is -150 degrees Celsius.

And the next planet is… Uuuummmm… MARS

March 26, 2011
I totally didn’t have to look that one up.

Yes, the red planet. So here are some facts, boys and girls:

Named after the roman war god, Mars is smaller than earth, with the surface area of 28% of that of the earth’s.

Mars also holds several records; it’s volcano Olympous Mons is 27km tall, (roughly three times the size of mount Everest,) and takes up an area similar to the American state of Arizona. This is the highest peak in the solar system.

It has the longest trench in the solar system too; stretching 4000km, and 7km deep, which makes it longer than the European continent and ten times longer than the grand canyon.

As Mars is smaller than Earth, gravity is a lot less; about 37% of what we experience on earth. If we are to ever land on Mars, we’d feel very light. (Though it would take us six months to travel by spaceship from Earth.)

It is the most likely of all the other planets in the solar system to have ever housed life; it is believed that water, the vital source of life, used to run on the red planet. It is now frozen, mainly in the polar ice caps.

Oh, and you wouldn’t find any socialists here! (I’ll just kill the joke.)