NASA's New Horizons spacecraft has crossed the a vast ocean of space to the very frontier of our solar system, about to begin the mission's primary objective: explore Pluto and its moons.
No space mission has ever journeyed so far from Earth to reach its destination. What's your take on where New Horizons has been, and where it's headed? Share your thoughts and reflections – in 200 words or less – on the first mission to Pluto and beyond. We'll post most of them here on the New Horizons website.