This morning was a luna eclipse, this one being a little more special then most as it was the first in 400 years to occur on the winter solstice.
Heres the luna eclipse I photographed back in 2007.
This provides a good photographic challenge, all thats needed is a long lens, a typical consumer 70-300mm telephoto zoom will do the job.
Metering for exposure can be difficult, the moon is brighter then you might expect, that together with the black sky will trick you meter into the wrong exposure. Use manual and your histogram to judge, shoot in RAW if you can not jpeg, and use a good tripod.
You will find you need to adjust the composition regularly as the moon moves quite quickly across the frame.
See bbc.co.uk for more details about the eclipse.
Update:
Chris Bennet managed to get some photos of this mornings elipse, you can see them here.