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Courtesy of Sol NASA announces the winners of its International Space Apps Challenge.
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Olympics 2012
Is London's Air Up to Snuff?
How does England's air quality compare to that of past hosts, and could it affect athletes?
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Why India's Massive Power Outages Get Fixed More Quickly Than D.C.'s
India's lights are back on within hours, not days.
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Democracy in America
Is That a 60-Foot Cell Phone Tower, or Are You Just Happy to See Me?
Residents of Castro Valley, California, demand a redesign of a phallus-like cell tower.
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Charts
How Technology Spreads, in 1 Chart
Mapping when some of our most popular technologies - like air conditioning and internet - reached 50 percent penetration.
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Inside the Weird World of Tracking Gangs on Social Media
With gang members openly posting about their plans to commit violent acts on Facebook and YouTube, police departments nationwide find increased challenges and unique advantages.
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Charts
Visualizing the New York Subway System's 'Data Exhaust'
What do 1.6 billion mass transit trips through the city look like?
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Photos
A Satellite View of City Growth, in GIFs
Watch these 11 cities boom over recent decades. From space. In animated GIFs.
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Photos
A Subway Train Ceiling Straight Out of 'Harry Potter'
London designers want to outfit the Tube with a real-time scrolling display showing the sky passing by above.
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Go Ahead, Cram 3 of These Folding Cars Into 1 Parking Spot
The Hiriko electric vehicle is so cute you might just want to pick it up and carry it home.
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Videos
Mapping Tokyo's Train System in Slime Mold
In the future, urban planners could lose their jobs to ultra-efficient slime molds.
