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What is Juno?
There has been a lot of excitement about the Juno probe this week, but what is it and what is its mission?
What is Juno?
Juno is a spacecraft designed and operated by NASA, the US space agency. It was launched from Cape Canaveral on the 5th August 2011 and has taken almost 5 years to travel the 716 million kilometres to Jupiter, the largest planet in our solar system. Juno is 3.5 metres in height, and when its solar arrays are extended it’s more than 20 metres across. These arrays are covered in more than 18,500 solar cells, which allows Juno to operate even when it’s at such a great distance from the Sun.
(Image: NASA)
Why is it called Juno?
In Roman mythology Juno was the Queen of the gods. She was married to the king, Jupiter, who wasn’t always well-behaved. Juno had to peer through the clouds to discover what he was up to; the spacecraft is called Juno because it will be looking beneath the clouds that cover the surface of the planet Jupiter.
Aboard the Juno craft are 3 models of Lego minifigures: Jupiter, Juno and Galileo, who discovered in 1610 that Jupiter had moons.
From left to right: Galileo, Juno and Jupiter. (Image: NASA/JPL-Caltech/LEGO).
What is it looking for?
Jupiter is enormous; it’s two and a half times larger than all the other planets in our solar system combined. It’s made entirely of gases and is believed to have no solid surface. The planet rotates at an immense speed, completing one rotation every ten hours, and telescopes have shown us that it has a cloudy atmosphere with colourful spots and stripes. The largest of these, known as the Great Red Spot, is a storm that is several times the size of Earth and has been raging for more than 300 years.
Jupiter. The Great Red Spot is clearly visible. (Image: NASA).
This mission is the first time that humans will be able to glimpse what lies beneath Jupiter’s cloudy atmosphere. The main objective is to understand how the planet formed and evolved, which will give us more information about the formation of gas giants as well as the rest of the solar system. Juno will also measure the quantities of water and ammonia within the atmosphere, examine the magnetic field that surrounds the planet, observe any polar auroras and measure the gravity to see whether a solid core may exist after all.
For more information about the Juno mission you can watch this video from Nasa, and have a look at the Juno mission webpage.
What Is the Turing Test, and Why is it Important?
It has been reported that a computer program has passed the famous Turing Test by pretending to be a 13-year-old Ukrainian boy called Eugene Goostman. But just what is the Turing Test and why is this development so interesting? Sam investigates.
How to Clean Water
With poor living conditions and water shortages increasing every year across the world, the question of how to clean water efficiently is becoming ever more important.
Does Everyone Have Clean Water?
When you have clean, safe water available at the turn of a tap it’s very easy to take it for granted. But almost 750 million people don’t have access to clean water; that’s one person from every ten in the world’s population. There are many reasons for this, from poverty to poor management by governments.
But almost 750 million people don’t have access to clean water; that’s one person from every ten in the world’s population. There are many reasons for this, from poverty to poor management by governments.
There are many reasons for this, from poverty to poor management by governments.
Connection Infection – Poetry by Kids
News scrolling on a bright screen
Eyes scanning down a magazine
Locked up in a daydream
Obsessed by the latest Instagram post I’ve seen
I’m infected with a virus
That I can’t get out of my head
It’s got me going crazy
At least; that’s what the comments said
Hairstyles and creations
‘Urgent’ messages from relations
The latest trends and how to cook
Living life by an electronic book
I’m infected with a bug
That’s connected to my hands
That’s left me solitary
Unware of and blind to the past
We used to talk face to face
Of politics, clothes and space
But then you were replaced
By a cruel-minded interface
My alarm’s a notification
I’m dictated by cold metal parts
My day scheduled on reaching the leader boards
The social media bug has infected my heart
Green and Growing: The Life of a Seed
As you know, there is a vast number of different kinds of plants growing all over the world, from snowy slopes to Amazon rain forests to dusty deserts: plant life is everywhere. So how does it all work? Lets start with seeds.
The Life of a Seed
Picture a seed – I am sure you have all seen them. It will have a hard outer shell to protect it. When it has found the right conditions of warmth and moisture, this shell will crack or split as a root pushes its way out to take hold in the soil. Then the plant will start to grow and a shoot will make its way upwards, with the root growing down, to draw moisture from the ground and provide some balance for the plant, keeping it firm in its place.
Just like you and me, plants need food to grow. Their food is very different from ours, of course! Here’s what they do: the leaves draw water up from the roots, through the stem, and they also soak up sunlight and air. These three things combine to make food in the leaves, where it is stored. Now think of an onion. It is formed to store the food for the plant.