After traveling more than 3 billion miles, the New Horizons spacecraft reached Pluto earlier this month. Now Pluto is all over the news, and for good reason.
All the other planets in our Solar System had already been visited by spacecraft. Pluto was the last planet that we hadn’t yet explored.
Oh, wait. A few years ago, Pluto got demoted. It isn’t a planet anymore.
Let me re-phrase that statement then.
Pluto was the last former planet that we hadn’t yet explored.1
Even though we’re only starting2 to get back images and data from New Horizons, the results are already spectacular. Read more