We shot them 70 or 80 metres into the air and deployed the probe. The idea was to prevent the egg from smashing.
Some of the best probe designs had a parachute and landing feet to cushion the egg's landing.
Half human, half plant
We also designed a human body which could adapt to the conditions in space.
My creation had really big eyes to see in the dark and a bacteria-fighting enzyme for skin.
I also gave him human features so he could interact with the rest of the crew members on board the space ship.
Space mission
We also visited the National Space Centre in Leicester and completed a simulated space mission.
We were in a pretend rocket and had to work as a team to complete a number of tasks including fixing the carbon dioxide filter before the crew died from a lack of oxygen.
It was really challenging.
ET?
We also learnt that there may well have been life on Mars before the cold temperatures killed everything.
Although there may not be life on the red planet now, I think there must be extra-terrestrials somewhere in the universe
Given the millions of stars and planets there are, and the size of some planets, there is no way people are the only beings alive.
In the future, I think people will find a way to live in space. Although the moon is too small, I think there will be more space stations orbiting the Earth and people will live on Mars.
I enjoyed Space School so much, I want to go for 12 days next year."
Joe, 14, Lancaster
Why don't you write us a Press Pack report - and get it published on the site?!
It can be about anything that's happened in your local area - or your views on the news.
Mars planet quiz
How to write YOUR report!
