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.
When I Met Mary Robinson – Written By You
Me and my mum went to hear this lady talk, her name is Mary Robinson, Mary was the President of Ireland, but she was not just any kind of President of Ireland,she was the first woman President of Ireland. She got a Presidential Medal of Freedom from President Obama in 2009. And was the first President of Ireland to visit the Queen.
Growing up
Mary grew up in a small town in Ireland, her mum and dad where doctors and her gran died when she was about 10 years old… When Mary was 17 she went to a finishing school in Paris while deciding if she wanted to become a nun… In that finishing school she was the only non-French speaking student there.
little light
Mary Robinson famously put a light in her kitchen window to guide the people that have left Ireland to live a country abroad back home.
my question
If you had a chance of asking Mary Robinson a question in front of 600 people, would you do it? I would, and I did. Here’s what I said and what Mary replied:
Afterwards Mary signed a copy of her book for me
Princess Leia – The Warrior Princess
I love Star Wars. It’s my favourite trilogy of films ever. At least, I loved it when I was 8 and 9 and played Star Wars in the park wit my friends. I wasn’t overly fond of it when I was 6 years old and saw Empire Strikes Back for the first time. I still fast forward through the beginning bit of the movie where Luke Skywalker gets kidnapped by an abominable snowman on the planet Hoth and has to be rescued by Han Solo. It terrified me so much when I was 6 and saw it the cinema that my dad had to take me out.
So You Want to Be An… Archaeologist
