The Beeb has the story:
Cheesemakers in space flight bid
Members of the West Country Cheesemakers group are to attempt to make the first space flight by a piece of Cheddar.
The group plans to launch a weather balloon 18.6 miles (30km) into the upper atmosphere carrying a capsule containing a piece of handmade Cheddar. [. . .]
The attempt is being made to mark the 40th anniversary of the moon landings. [. . .]
In 2007 the West Country Farmhouse Cheesemakers put a traditional round of Cheddar onto the internet via a webcam which allowed people to watch the cheese mature live on the web over the course of 12 months.