Science, Nature and Tech

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.

Screenshot 2016-07-07 at 11.03.21

(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).

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).

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.

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Art & History, Language & Literature

Jump! into Etymology for Kids

Have you ever thought about languages, and how they develop over time?
Why do we say ‘tree’ when we look at a one of those green things outside our window, and where did the word ‘rose’ come from? (Can you tell that I am looking out of my window for inspiration?)
When we look at the links between the words that we use in English and those in a different country, we often find similarities. Information is the same in English, as in German and French, although the pronunciation is different.
The study of words is called etymology, and today Millie is going to explain a bit more about this, and tell us a bit about the word ‘JUMP’.

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Language & Literature

Tarragon: the Snake in your Kitchen

Even if you are not a budding chef, you might have heard of this herb. It can be used in all sorts of ways in cooking, especially with chicken, eggs and fish. And if you are fortunate enough to have tried French cuisine, you may have had it in Bearnaise sauce.
 But where did the name come from? You might think it looks very English, but in fact, this word has had quite a journey to reach us in the form it is today in English.

 

“Tarragon” first appeared in this form in the 1530s, but it came from an earlier English form; taragon. This was formed from the Middle French term targon, which came from Medieval Latin tragonia. But the story doesn’t end here. There is an intriguing twist in the tale.

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Art & History

Who Was Maya Angelou?

Maya Angelou was born Marguerite Annie Johnson, in St Louis, Missouri, in 1928. Her brother could not pronounce her name properly and called her Maya, the name that she came to be known by.
She had a difficult childhood – after suffering abuse when she was eight years old, she stopped talking for five years.  She later wrote her autobiography, describing overcoming her childhood trauma, and growing up in the segregated south of USA – when people of colour and white people were not allowed to mix. She was committed to the civil rights movement, which aimed to break the segregation and allow people to live freely.

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