After a three-billion-mile (4.8-billion-kilometer) journey that took nearly 10 years, the nuclear-powered New Horizons -- about the size of a baby grand piano whizzed by Pluto, beamed home to scientists a message that it survived its historic encounter before sending back the closest look ever of the distant dwarf planet.
Back home, space enthusiasts jumped with joy as this was the first spacecraft to fly past Pluto.
"Pluto just had its first visitor! Thanks @NASA - it's a great day for discovery and American leadership," tweeted Obama.
Once New Horizons completed the 'fly by' successfully, Internet decided to poke fun by sharing #plutoflyby memes on Twitter.
Here is a collection of the some of the best memes on the topic.
Oh, boy! There's no pup more stellar than Pluto. pic.twitter.com/QwH1r51GGG— Disney (@Disney) July 14, 2015
Does anyone else see Pluto on Pluto? pic.twitter.com/cmf9k4Sqaq— Dr. Science Cat (@DrScienceCat) July 14, 2015
Favourite Pluto meme so far pic.twitter.com/knbqahGBq6— Philip Ellis (@Philip_Ellis) July 14, 2015
First high resolution image of Pluto causes concern: pic.twitter.com/ZVIT0BEFX6— R Paul Wilson (@rpaulwilson) July 14, 2015
hey guys.... the pics came in from the other side of pluto and... pic.twitter.com/tV89oM9BL0— Lana Polansky (@mechapoetic) July 14, 2015
Lonely Pluto. pic.twitter.com/YI3sTva5pv— Liam Jackson (@luffwoto) July 14, 2015
How Pluto felt today pic.twitter.com/QJYo1ukPs1— Josh Constine (@JoshConstine) July 15, 2015
When you kick Pluto to the planetary curb but then drive by her orbit really slow. pic.twitter.com/xSdj8TfNVV— Justice Don Willett (@JusticeWillett) July 15, 2015