NASA's New Horizons interplanetary probe has been making its way to Pluto since January 19, 2006, and has been providing the world with the sharpest photos ever seen of our Solar System's most prominent "dwarf planet." Today, it made its closest approach to Pluto yet -- about 8,000 miles -- at around 07:49:57 EDT.
Here's the photo they took -- which, despite traveling at the speed of light (186,000 miles per second), took four and a half hours to reach us here on Earth as it crossed the 3 billion miles between here and Pluto

Dr. John P. Holdren
Director, Office of Science and Technology Policy
The White House

Pluto

I don’t know who named you
But this much I know
You look cold and lonely
With nowhere to go

Like a dirty old baseball
I lost as a kid
Now billions of miles out in time and space
Are you ashamed of something you did?

They say you’re made out of ice and snow
So they no longer call you a planet
Way out there where the temp is mighty low
You look more like you’re made out of granite.

Sail on old friend sail on and on
You’ll be there long after we’re gone
But now that we know what you look like
We’ve got something to keep an eye on.