Today is December 1st and that can only mean one thing; it’s time to open the first window of your advent calendar!
Unfortunately, behind each window you won’t find chocolate…You will, however, find a music video and written clue to help you identify a key science news story from 2011. Let us know in the comments here each day what you think the answer is, or discuss it on Twitter using the #yuletubecalendar hashtag
Don’t forget to check back each day for a new clue!
If you’d like to make your own calendar to share, you can follow our simple instructions… We’d love to see how creative you can be and may also feature the best calendars here on the blog, so do tweet about it with the #yuletubecalendar hashtag or leave us a comment!