I'm a space nut. For the first time in human history, we'll be visiting Pluto tomorrow. And you can watch. This from Business Insider:

If everything goes according to plan, a NASA spacecraft, called New Horizons, will fly by Pluto at 7:49 am ET. New Horizons is the first spacecraft in history to ever visit Pluto, and it's been a long time coming after 9 years in space. NASA will stream live countdown coverage of the event starting at 7:30 am, followed by a briefing on the mission from 8:00 to 9:00 am ET.

I'll be watching.