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Alex Parker

Explore Pluto in Google Earth!

Posted by Alex Parker

08-07-2015 13:38 CDT

Topics: New Horizons, Pluto

The Pluto encounter team is working furiously to prepare for flyby and analyze new data as it comes down from the spacecraft. One of the chief ongoing activities is producing the first maps of Pluto using images collected by New Horizons.

Because of the approach trajectory that New Horizons is on, not all of Pluto is visible to the spacecraft yet. As such, our first maps include all of Pluto's northern hemisphere, but only part of Pluto's southern hemisphere.

We've made a version of our current maps for use in Google Earth. You can now easily download the map and explore the best Pluto maps ever made! You can find the Google Earth map here.

Pluto in Google Earth

NASA / JHUAPL / SwRI / Google

Pluto in Google Earth

Map Data

The map is made with data from two of New Horizons instruments. The highest-resolution imager that New Horizons carries is LORRI, which only collects black-and-white images. The color imager is MVIC (part of the Ralph instrument), which collects lower-resolution images in multiple color filters.

We used the high-resolution images from LORRI to create a panchromatic reflectance (albedo) map, and overlaid a lower-resolution color map over it.

These maps will rapidly improve as we continue to approach Pluto over the coming days

Map in Google Earth

Since this is an image overlay for Google Earth, the underlying size of the planet is incorrect - sizes and distances on the map are not to proper scale for Pluto. However, a fun side effect of this is that Earth locations are searchable and comparable to the latitudes and longitudes of features on the Pluto map. This means if you search for your home address and zoom in, you can see the latitude and longitude that your house would be on Pluto. What kind of terrain might surround your Plutonian vacation home?

Here There Be Dragons - But Not For Long!

The portion of the map that remains blank will be filled in as New Horizons rounds the far side of Pluto after its close flyby. The south pole of Pluto is currently in the midst of decades-long polar darkness; with no sunlight falling directly on the landscape, New Horizons will instead use light from Charon to illuminate the terrain in its images.

I for one can't wait to see what Charon-shine reveals in the long polar night.

See other posts from July 2015


Or read more blog entries about: New Horizons, Pluto


rickray777: 07/08/2015 03:01 CDT

Well, it was about a decade ago (I guess) that the Hubble Space Telescope made its own map of the Plutonian surface. Remarkable though it was deemed at that time, the New Horizons spacecraft has already proven most of it wrong (that is to say, the two don't look anything alike to me!). Looks like we're in for a pretty exciting ride, to say the least!

Messy: 07/08/2015 03:45 CDT

They finally put up the first post-glitch photos (whew!) and it seems like the details seen from earlier takes aren't compression artifacts at all. Which is good! What's really going to hurt is that nothing's going to be released immeditely from a couple of days before the flyby to a couple of days after, then pretty much nothing until September. Still....

rickray777: 07/08/2015 05:08 CDT

Wow! I just saw the post-glitch color image released by NASA, (at, actually); and it's good! I guess I can finally put my old notions of a cloud-covered Pluto to rest.

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