Last chance to play #spacegeo! Here's one for the road. Name it!

Here we go #spacegeo players. Name it!

Let's see what you got. Name it! #spacegeo

Going to do something a little differently. Name it! And you give me a clue, a historical fact of the geo location photographed from space. #spacegeo

Boardwalk empire. Name it! #spacegeo

#spacegeo round 10. Name it!

@neiltyson Explain #chemtrails #spacegeo

Remote Alps lake w/ ice blocks #spacegeo

The overall landscape is not particularly green, despite what the country's name suggests. Name it! #spacegeo

Channeling energy. Name it! #spacegeo

The odds of a snowball’s chance here are pretty good. Human survival on this perennial ice-covered land, not so much. Name it! #spacegeo

#spacegeo round 6 answer: North Korea. The illuminated coastline is the border between South and North Korea. North Korea is the black sea. The island of electricity is the capital of Pyongyang. The gap between the haves and have-nots is pretty telling from this vantage point at night.

#spacegeo for hard-core pros: City at night, as seen by @StationCDRKelly from aboard the #iss

In terms of expeditions, this land area marks the true test of endurance. Name it! #spacegeo

City without a name, as seen by @StationCDRKelly from aboard the #iss

Gulf of Aden and the Red Sea, as seen by @StationCDRKelly from aboard the #iss for his #spacegeo, round 3

#spacegeo round 3. The direct translation of this body of water's Latin name refers to a region on Mars. Name it!

What lies beneath? Explorers are studying the depth of this country’s resource to unearth its mysteries. Kind of like what we do in space. Name it! #spacegeo

Name this city! World heritage. #spacegeo #iss #space

Name this island. #spacegeo #space #iss

Name this city! #space #iss #spacegeo

Let #spacegeo begin! This country's contributions to science include the barometer, electric battery, nitroglycerin and wireless telegraphy to boot. Name it!