Think you could recognize your favorite city from above at night? How about from space?
Over the past few years, NASA has been collecting photos of various parts of the world for a series called "Earth at Night." The photos are mostly of major cities, and each one twinkles in a different way. The ones above are just a sample of the series, which NASA continues to add to on the Flickr page for its Marshall Space Flight Center.
Is your home city in this set? Is it close enough to pick out some landmarks? Let us know in the comments.
All images in this gallery are by NASA.
NASA's 'Earth at Night' series is stunningly beautiful