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.
Kymberlee Jay – Professional dancer and Remarkable Woman!
Award winning choreographer and dancer specialising in underground styles including street dance, Kymberlee Jay has 21 years of experience and has worked with a variety of companies and clients including Nike and Madonna. What makes her unique? She’s self taught and prefers masculine hip hop moves – beating the boys at their own game!
Remarkable Women connected by Nokia is a celebration of 50 women who are true ‘Unfollowers.’ These Remarkable Women are challenging normal conventions, bravely being different and inspiring others.
What made you agree to be part of the Remarkable Women campaign, and what do you hope to achieve with your involvement?
What Does Brexit Mean for Kids?
The British have voted to leave the European Union, but what does this mean, and what does Brexit mean for kids?
Most of you will have heard of the EU Referendum, known as BREXIT (which stands for BRitish Exit). If you don’t know what a referendum is, then this is a good place to find out more.
We asked some of our readers what questions they had about BREXIT. These questions are difficult to answer right now because even the experts don’t know exactly what will happen, but here’s what we know so far. If you have any questions, comment on this post and we’ll try to find the answers for you.
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