We have the news that frozen water has been found on Mercury. Your students can take a look into why this is unexpected, where it is found and how scientists have discovered it.
Also, are people getting dumber? One scientists has put forward this controversial hypothesis in which he outlines how he thinks mutations are meaning that we are less intelligent that our ancestors. Is this an example of natural selection in humans and how exactly could we be selecting for this characteristic.
I always like a food based story and so have found two on un-meltable chocolate and mould-free bread. Finally, the exciting new that the double helical structure of DNA has been seen for the first time by using electron microscopy.