This is cool.
One lucky winner will win their very own piece of Mars!
All you have to do is tell us in no more than 140 characters what you think the first person to set foot on Mars should say.
What would you say if you landed on Mars?
Everyone is familiar with the words relayed by Neil Armstrong when he stepped off Apollo 11’s lunar module and onto the moon itself: "One small step for man, one giant leap for mankind." We are looking for something even more memorable or funnier that you think the first man or woman to set foot on Mars should say.
Enter the Mars rock competition - New Scientist