Over the years - including this one - I've uploaded plenty of videos with a Christmas theme.
Here's some to keep you busy over the festive period!
The Periodic Table of Videos' world-famous Chemistry Christmas tree decorated with molecular models:
Etching "Merry Christmas" on a snowflake:
Stamp collecting meets Biblical studies - and was Mary really a virgin?
Which element would you like for Christmas?
Our tree expert Markus on the Science of Christmas Trees:
And here's Markus on Holly:
Professor Moriarty from Sixty Symbols puts a popular Christmas gift through its paces:
Astronomers and Biblical scholars combine for a bit of fun about the Christmas Star:
Accompanying the above, here's a "Star of Bethlehem Simulation" from Test Tube: