London's has a massive poo problem - its sewers are struggling to cope! So a new super-sewer is being created to tackle the problem.
Books are selling in higher numbers than ever - and children's books are particularly popular. So tell us what's your favourite book!
Could plastic that has been thrown away as rubbish be used to build our roads?
All the latest stories from the Newsround team.
After a rhino was killed in a zoo in France, police and zoos in the UK are teaming up to keep rhinos safe.
We take a look at some of the biggest treasure hauls found by real people.
We went to ask you what you think of your parents' behaviour on their mobile phones. Here's what you had to say.
Isabella always wanted to play the violin - so university students built her a prosthetic arm with a 3D printer to help her learn.
A new 'personal flying machine' will launch by the end of the year.
The weather's gone cold again - and we want your pictures!