IN THE 85 YEARS that humankind has known of Pluto’s existence, the dwarf planet has yet to complete a single revolution around the sun. So far is it from the sun and from Earth that even the most powerful telescopes see it as a blurry disk. Decades of calculating—and speculating—by astronomers have created only a sketchy portrait of the icy rock.
That all changes on Tuesday morning.
New Horizons' Long, Dark, Amazing Journey to Pluto...And Beyond | WIRED