Early tomorrow morning, December 21, there will be a total lunar eclipse. It will be completely visible to those in North America (assuming clear skies, of course) and people in Europe will be able to see the beginning of it.
He’s back again with a similar tool to determine the best time to view the lunar eclipse from your location. Check out the tool here to see when you should step outside to view the eclipse.
If you’re not in a location that can view the eclipse, or if cloud cover obscures your view, NASA has a live feed that you can tune into to see the eclipse as it happens. UPDATE: Or watch it live in Google Earth using Slooh.