There is a 16-by-16 mile grid of big X’s in the Sonoran Desert that were used to calibrate spy satellites in the 1960s. They’re no longer in use, but Julie Anand and Damon Sauer have been studying the marks and overlaying the paths of publicly-known satellites that are detected during the time of a photograph.
Satellites from the ground
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Most Common Use of Time, By Age and Sex
Typical time use varies by who you talk to. This interactive shows you the differences when you vary age and sex.
The Change My Son Brought, Seen Through Personal Data
I combed through personal data that I’ve actively and passively collected since early graduate school to see how life is different now with a 6-month old.