By MARCIA DUNN
AP Aerospace Writer
CAPE CANAVERAL, Fla. (AP) - Pluto is about to reveal itself. So Earthlings, sit back and enjoy the show.
On Tuesday, NASA's New Horizons spacecraft will sweep past Pluto and present the previously unexplored world in all its icy glory.
It promises to be the biggest planetary unveiling in a quarter-century. The curtain hasn't been pulled back like this since NASA's Voyager 2 shed light on Neptune in 1989.
New Horizons has traveled 3 billion miles over 9½ years to get to this historic point. The fastest spacecraft ever launched, it carries the most powerful suite of science instruments ever sent on a scouting and reconnaissance mission of a new, unfamiliar world.
Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.