After nine years travelling and a three billion mile journey, the New Horizons probe is getting closer to the dwarf planet.
The amazing pictures have shown that the planet has a dark area, which scientists have nick-named "the whale", and a light area, which looks like it's shaped like a heart.
New Horizons is set for an historic fly-by next week.
This means the probe will fly around 12,500km above the dwarf planet's surface - the closest we have ever been to Pluto.
John Spencer, one of those working on the New Horizons project from the Southwest Research Institute said: "They're still a little blurry but they're by far the best pictures we've ever seen of Pluto, and they're only going to get better,".
Nasa's New Horizons probe has sent back some of the most detailed pictures of Pluto ever taken.