1.3 parts per billion: the maximum concentration of methane in the Martian atmosphere, according to a new analysis from the rover Curiosity (sadly, this means the red planet is probably not home to living organisms)
260 million: the number of surfaces in this astounding room designed by computer algorithms and 3-D printed from sand
497 miles: the distance a new kind of multiplexer can send light streams without losing data along the way (the technology may be able to save the internet from a crippling data bottleneck)
73 percent: the portion of U.S. college students in 2007 who said they had mixed energy drinks with alcohol in the past month. A new paper accuses Red Bull of meddling with research on the harms of using energy drinks as a mixer.
8 feet: the wingspan of a private drone that mapped flooded Colorado communities in the wake of last week's torrential rains, flying in weather too dangerous for larger aircraft